The 1st Signal Regiment () is an expeditionary
signals
A signal is both the process and the result of Signal transmission, transmission of data over some transmission media, media accomplished by embedding some variation. Signals are important in multiple subject fields including signal processin ...
regiment of the
Italian Army
The Italian Army ( []) is the Army, land force branch of the Italian Armed Forces. The army's history dates back to the Italian unification in the 1850s and 1860s. The army fought in colonial engagements in China and Italo-Turkish War, Libya. It ...
based in
Milan
Milan ( , , ; ) is a city in northern Italy, regional capital of Lombardy, the largest city in Italy by urban area and the List of cities in Italy, second-most-populous city proper in Italy after Rome. The city proper has a population of nea ...
in
Lombardy
The Lombardy Region (; ) is an administrative regions of Italy, region of Italy that covers ; it is located in northern Italy and has a population of about 10 million people, constituting more than one-sixth of Italy's population. Lombardy is ...
. The unit was formed in 1906 in
Rome
Rome (Italian language, Italian and , ) is the capital city and most populated (municipality) of Italy. It is also the administrative centre of the Lazio Regions of Italy, region and of the Metropolitan City of Rome. A special named with 2, ...
as a detached brigade of the
3rd Engineer Regiment (Telegraphers) and tasked with training the army's
wireless telegraphy
Wireless telegraphy or radiotelegraphy is the transmission of text messages by radio waves, analogous to electrical telegraphy using electrical cable, cables. Before about 1910, the term ''wireless telegraphy'' was also used for other experimenta ...
personnel. In 1919, the battalion was expanded to Radio-Telegraphers Engineer Regiment, which split in 1926 to form the 1st Radio-Telegraphers Regiment and
2nd Radio-Telegraphers Regiment. Both regiment were disbanded in 1932.
In 1948, the unit was reformed as a battalion and given the number III, which had been used by two signal battalions during World War II. During the
Cold War
The Cold War was a period of global Geopolitics, geopolitical rivalry between the United States (US) and the Soviet Union (USSR) and their respective allies, the capitalist Western Bloc and communist Eastern Bloc, which lasted from 1947 unt ...
the battalion was assigned to the
III Army Corps. In 1975, the battalion was named for the
Splügen Pass
The Splügen Pass (; ; ) is an Alpine mountain pass of the Lepontine Alps. It connects the Swiss, Grisonian Splügen to the north below the pass with the Italian Chiavenna to the south at the end of the Valle San Giacomo below the pass ...
() and assigned the flag and traditions of the 1st Radio-Telegraphers Regiment. In 1995, the battalion lost its autonomy and entered the reformed 1st Signal Regiment. In 2001, the regiment reformed the
Signal Battalion "Sempione" as its second signal battalion. The regiment is assigned to the army's
NRDC-ITA Support Brigade, which supports the
NATO Rapid Deployable Corps – Italy.
The regiment's anniversary falls, as for all signal units, on 20 June 1918, the day the
Austro-Hungarian Army
The Austro-Hungarian Army, also known as the Imperial and Royal Army,; was the principal ground force of Austria-Hungary from 1867 to 1918. It consisted of three organisations: the Common Army (, recruited from all parts of Austria-Hungary), ...
began its retreat across the
Piave river during the
Second Battle of the Piave River.
History
On 24 February 1906, the
3rd Engineer Regiment (Telegraphers)'s Specialists Brigade in
Rome
Rome (Italian language, Italian and , ) is the capital city and most populated (municipality) of Italy. It is also the administrative centre of the Lazio Regions of Italy, region and of the Metropolitan City of Rome. A special named with 2, ...
formed a
Radio-Telegraphers Section, which trained the
Royal Italian Army
The Royal Italian Army () (RE) was the land force of the Kingdom of Italy, established with the proclamation of the Kingdom of Italy. During the 19th century Italy started to unify into one country, and in 1861 Manfredo Fanti signed a decree c ...
's radio-telegraphic personnel in the use of
spark-gap transmitter
A spark-gap transmitter is an obsolete type of transmitter, radio transmitter which generates radio waves by means of an electric spark."Radio Transmitters, Early" in Spark-gap transmitters were the first type of radio transmitter, and were the m ...
s. In 1909, the Specialists Brigade an became autonomous unit, which in March 1911 was renamed Specialists Battalion. In 1911-12, the battalion provided ten radio-telegraphic stations for the
Italo-Turkish War
The Italo-Turkish (, "Tripolitanian War", , "War of Libya"), also known as the Turco-Italian War, was fought between the Kingdom of Italy and the Ottoman Empire from 29 September 1911 to 18 October 1912. As a result of this conflict, Italy captur ...
. In August 1912, the task of training the army's radio-telegraphic service personnel was transferred to the 3rd Engineer Regiment (Telegraphers), while the Specialists Battalion trained the radio-telegraphic personnel of the army's
Military Aviation Corps.
World War I
At the outbreak of
World War I
World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
the 3rd Engineer Regiment (Telegraphers) mobilized nine radio-telegraphers sections for service on the
Italian Front. During the war a further 18 radio-telegraphers sections were formed. In 1918, the Army General Staff ordered the radio-telegraphic services of the army and military aviation corps to merge. Consequently, on 1 July 1918, the Radio-Telegraphers became a speciality of the
Royal Italian Army
The Royal Italian Army () (RE) was the land force of the Kingdom of Italy, established with the proclamation of the Kingdom of Italy. During the 19th century Italy started to unify into one country, and in 1861 Manfredo Fanti signed a decree c ...
's Engineer Corps and on the same day a Radio-Telegraphers Battalion was formed in
Tivoli. The battalion was assigned to the 3rd Engineer Regiment (Telegraphers) and received the 27 radio-telegraphers sections the regiment had formed during the war. The battalion also received a
train
A train (from Old French , from Latin">-4; we might wonder whether there's a point at which it's appropriate to talk of the beginnings of French, that is, when it wa ... , from Latin , "to pull, to draw") is a series of connected vehicles th ...
section and an automobile squad. The battalion immediately began to train personnel for an additional 23 radio-telegraphers sections destined for the army's 23
army corps
Corps (; plural ''corps'' ; from French , from the Latin "body") is a term used for several different kinds of organization. A military innovation by Napoleon I, the formation was formally introduced March 1, 1800, when Napoleon ordered Gener ...
. However, the war ended before the training had been completed.
Interwar years
On 21 November 1919, the Radio-Telegraphers Engineer Regiment was formed in Rome. The new regiment united all radio-telegraphers units of the army and consisted of a command, five battalions, a depot in Rome, four branch depots in
Mestre
Mestre () is a borough of the comune of Venice on the mainland opposite the historical island city in the region of Veneto, Italy.
Administratively, Mestre forms (together with the nearby Carpenedo) the Municipalità di Mestre-Carpenedo, one ...
,
Florence
Florence ( ; ) is the capital city of the Italy, Italian region of Tuscany. It is also the most populated city in Tuscany, with 362,353 inhabitants, and 989,460 in Metropolitan City of Florence, its metropolitan province as of 2025.
Florence ...
,
Piacenza
Piacenza (; ; ) is a city and (municipality) in the Emilia-Romagna region of Northern Italy, and the capital of the province of Piacenza, eponymous province. As of 2022, Piacenza is the ninth largest city in the region by population, with more ...
, and
Palermo
Palermo ( ; ; , locally also or ) is a city in southern Italy, the capital (political), capital of both the autonomous area, autonomous region of Sicily and the Metropolitan City of Palermo, the city's surrounding metropolitan province. The ...
, and the Special Radio-Telegraphers Section for
Sardinia
Sardinia ( ; ; ) is the Mediterranean islands#By area, second-largest island in the Mediterranean Sea, after Sicily, and one of the Regions of Italy, twenty regions of Italy. It is located west of the Italian Peninsula, north of Tunisia an ...
, which was based in
Cagliari
Cagliari (, , ; ; ; Latin: ''Caralis'') is an Comune, Italian municipality and the capital and largest city of the island of Sardinia, an Regions of Italy#Autonomous regions with special statute, autonomous region of Italy. It has about 146,62 ...
. The regiment's five battalions were based in Rome, Mestre, Florence, Piacenza, and Palermo and consisted of two radio-telegraphers companies each. Over the next years the regiment added a sixth battalion and the regiment's battalions repeatedly changed location.
On 15 November 1926, the Radio-Telegraphers Engineer Regiment ceded its II Battalion, IV Battalion, and V Battalion to form the next day, on 16 November 1926, the 2nd Radio-Telegraphers Regiment in
Florence
Florence ( ; ) is the capital city of the Italy, Italian region of Tuscany. It is also the most populated city in Tuscany, with 362,353 inhabitants, and 989,460 in Metropolitan City of Florence, its metropolitan province as of 2025.
Florence ...
. On the same day, the Radio-Telegraphers Engineer Regiment was renamed 1st Radio-Telegraphers Regiment.
The 1st Radio-Telegraphers Regiment then formed two new battalions and consisted afterwards of a command in Rome, the I, II, and III battalions in Rome, the IV Battalion in
Naples
Naples ( ; ; ) is the Regions of Italy, regional capital of Campania and the third-largest city of Italy, after Rome and Milan, with a population of 908,082 within the city's administrative limits as of 2025, while its Metropolitan City of N ...
, the V Battalion in Palermo, the Radio-Telegraphers Company for Sardinia in Cagliari, a depot in Rome, and two branch depots in Naples and Palermo. Each of the five battalions consisted of two companies.
On 28 October 1932, both radio-telegraphers regiments were disbanded and the units of the 1st Radio-Telegraphers Regiment were distributed among the army's engineer regiments as follows:
* I Battalion assigned to the
7th Engineer Regiment, in
Florence
Florence ( ; ) is the capital city of the Italy, Italian region of Tuscany. It is also the most populated city in Tuscany, with 362,353 inhabitants, and 989,460 in Metropolitan City of Florence, its metropolitan province as of 2025.
Florence ...
* II Battalion assigned to the
6th Engineer Regiment, in
Bologna
Bologna ( , , ; ; ) is the capital and largest city of the Emilia-Romagna region in northern Italy. It is the List of cities in Italy, seventh most populous city in Italy, with about 400,000 inhabitants and 150 different nationalities. Its M ...
* III Battalion assigned to the
8th Engineer Regiment, in
Rome
Rome (Italian language, Italian and , ) is the capital city and most populated (municipality) of Italy. It is also the administrative centre of the Lazio Regions of Italy, region and of the Metropolitan City of Rome. A special named with 2, ...
* IV Battalion assigned to the
10th Engineer Regiment, in
Santa Maria Capua Vetere
Santa Maria Capua Vetere is a town and ''comune'' in the province of Caserta, in the region of Campania, in southern Italy.
Though it is not connected with the ''Civitas Capuana'', the town is a medieval place and its proximity to the Roman amphit ...
* 9th Company/ V Battalion assigned to the
9th Engineer Regiment, in
Trani
Trani () is a seaport of Apulia, Southern Italy, on the Adriatic Sea, by railway west-northwest of Bari. It is one of the capital cities of the province of Barletta-Andria-Trani (BAT).
History
Overview
The city of ''Turenum'' appears for the ...
* 10th Company/ V Battalion assigned to the 12th Engineer Regiment, in
Palermo
Palermo ( ; ; , locally also or ) is a city in southern Italy, the capital (political), capital of both the autonomous area, autonomous region of Sicily and the Metropolitan City of Palermo, the city's surrounding metropolitan province. The ...
* Radio-Telegraphers Company for Sardinia assigned to the Mixed Engineer Battalion Sardinia
On the same day, 28 October 1932, the personnel of the command and depot of the 1st Radio-Telegraphers Regiment were used to form the command and depot of the newly formed
2nd Miners Regiment.
Cold War
On 1 December 1948, a Connections Battalion was formed in
Milan
Milan ( , , ; ) is a city in northern Italy, regional capital of Lombardy, the largest city in Italy by urban area and the List of cities in Italy, second-most-populous city proper in Italy after Rome. The city proper has a population of nea ...
as support unit of the
III Territorial Military Command. In March 1950, the battalion was numbered III Connections Battalion and became the spiritual successor of the III Telegraphers Battalion and III
Marconisti Battalion, which had been formed by the
6th Engineer Regiment during
World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
. On 1 October 1952, the Connections Speciality became an autonomous speciality of the Engineer Arm, with its own school and
gorget patches
Gorget patches (collar tabs, collar patches) are an insignia in the form of paired patches of cloth or metal on the collar of a uniform (gorget), used in the military and civil service in some countries. Collar tabs sign the military rank (group ...
. On 16 May 1953, the speciality adopted the name Signal Speciality and consequently, on 1 June 1953, the III Connections Battalion was renamed III Signal Battalion. On 25 January 1954, the battalion was renamed III Army Corps Signal Battalion and consisted of a command, an operations company, a line construction company, and a signals center.
During the
1975 army reform the army disbanded the regimental level and newly independent battalions were granted for the first time their own flags. During the reform signal battalions were renamed for mountain passes. On 1 September 1975, the III Army Corps Signal Battalion was renamed 3th Signal Battalion "Spluga". The battalion was named for the
Splügen Pass
The Splügen Pass (; ; ) is an Alpine mountain pass of the Lepontine Alps. It connects the Swiss, Grisonian Splügen to the north below the pass with the Italian Chiavenna to the south at the end of the Valle San Giacomo below the pass ...
(), which connects the canton of
Grisons
The Grisons (; ) or Graubünden (),Names include:
* ;
*Romansh language, Romansh:
**
**
**
**
**
**;
* ;
* ;
* .
See also list of European regions with alternative names#G, other names. more formally the Canton of the Grisons or the Canton ...
in
Switzerland
Switzerland, officially the Swiss Confederation, is a landlocked country located in west-central Europe. It is bordered by Italy to the south, France to the west, Germany to the north, and Austria and Liechtenstein to the east. Switzerland ...
with the
Lombardy
The Lombardy Region (; ) is an administrative regions of Italy, region of Italy that covers ; it is located in northern Italy and has a population of about 10 million people, constituting more than one-sixth of Italy's population. Lombardy is ...
region in
Italy
Italy, officially the Italian Republic, is a country in Southern Europe, Southern and Western Europe, Western Europe. It consists of Italian Peninsula, a peninsula that extends into the Mediterranean Sea, with the Alps on its northern land b ...
. After the reform the 3rd Signal Battalion "Spluga" consisted of a command, a command and services platoon, three signal companies, and a repairs and recovery platoon.
On 12 November 1976, the
President of the Italian Republic
The president of Italy, officially titled President of the Italian Republic (), is the head of state of Italy. In that role, the president represents national unity and guarantees that Italian politics comply with the Constitution. The presid ...
Giovanni Leone
Giovanni Leone (; 3 November 1908 – 9 November 2001) was an Italian politician, jurist and university professor who was President of Italy from 1971 to 1978. A founding member of Christian Democracy (Italy), Christian Democracy (DC), Leone br ...
assigned with decree 846 the
flag
A flag is a piece of textile, fabric (most often rectangular) with distinctive colours and design. It is used as a symbol, a signalling device, or for decoration. The term ''flag'' is also used to refer to the graphic design employed, and fla ...
and traditions of the 1st Radio-Telegraphers Regiment to the battalion.
In August 1977, the battalion formed a fourth signal company and fielded now 1,099 men (36 officers, 198 non-commissioned officers, and 859 soldiers).
In March 1989 the battalion was reorganized and consisted afterwards of a command, a command and services company, the 1st Signal Center Company, the 2nd Signal Center Company, and the 3rd Radio Relay Company. On 16 May 1991, the battalion received a second radio relay company from the
231st Signal Battalion "Sempione"
The 231st Signal Battalion "Sempione" () is signals unit of the Italian Army. The battalion was formed in 1959 and assigned to the Armored Division "Centauro". In 1975, the battalion was named for the Simplon Pass () and received the number 231s ...
, which had been disbanded the day before.
Recent times
On 15 October 1995, the 3rd Signal Battalion "Spluga" lost its autonomy and the next day the battalion entered the reformed 1st Signal Regiment as Signal Battalion "Spluga". On the same day, the flag and traditions of the 1st Radio-Telegraphers Regiment were transferred from the battalion to the 1st Signal Regiment. The regiment consisted of a command, a command and services company, and the Signal Battalion "Spluga", which fielded two radio relay companies and two signal center companies. On 16 September 1996, the regiment was transferred from the 3rd Army Corps to the
Support Units Command "Legnano". On 31 December 1997, the Support Units Command "Legnano" was disbanded and regiment was transferred to the
Projection Forces Command.
On 1 June 1999, the Signal Speciality left the Italian Army's Engineer Arm and was elevated to Signal Arm. On 27 August 2001, the regiment reformed
Signal Battalion "Sempione" as its second signal battalion. Since then the regiment is an expeditionary signal regiment capable to deploy and operate outside Italy. On 1 November 2001, the regiment was assigned to the
Signal Brigade of the
NATO Rapid Deployable Corps – Italy.
For its conduct and work during the
COVID-19 pandemic
The COVID-19 pandemic (also known as the coronavirus pandemic and COVID pandemic), caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), began with an disease outbreak, outbreak of COVID-19 in Wuhan, China, in December ...
the regiment was awarded in 2022 a Silver Cross of Army Merit, which was affixed to the regiment's flag.
Organization
As of 2024 the 1st Signal Regiment is organized as follows:
*

1st Signal Regiment, in
Milan
Milan ( , , ; ) is a city in northern Italy, regional capital of Lombardy, the largest city in Italy by urban area and the List of cities in Italy, second-most-populous city proper in Italy after Rome. The city proper has a population of nea ...
** Command and Logistic Support Company
**

Signal Battalion "Spluga"
*** 1st Signal Company
*** 2nd Signal Company
*** 3rd Signal Company
**
Signal Battalion "Sempione"
*** 4th Signal Company
*** 5th Signal Company
*** 6th Signal Company
External links
Italian Army Website: 1° Reggimento Trasmissioni
References
{{Italian Army Signal Regiments
Signal Regiments of Italy