{{army units A divizion (dywizjon) (a word in several European languages, mostly Slavic) is a

military unit Military organization ( AE) or military organisation ( BE) is the structuring of the armed forces of a state so as to offer such military capability as a national defense policy may require. Formal military organization tends to use hiera ...

in some armed branches, usually

artillery Artillery consists of ranged weapons that launch Ammunition, munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during sieges, and l ...

and

cavalry Historically, cavalry (from the French word ''cavalerie'', itself derived from ''cheval'' meaning "horse") are groups of soldiers or warriors who Horses in warfare, fight mounted on horseback. Until the 20th century, cavalry were the most mob ...

, being an equivalent of

battalion A battalion is a military unit, typically consisting of up to one thousand soldiers. A battalion is commanded by a lieutenant colonel and subdivided into several Company (military unit), companies, each typically commanded by a Major (rank), ...

. It should be distinguished from division, which is a larger formation. The same word is used in some of these languages for a group of naval vessels (a division in naval usage).

Usage

* Russia / USSR: ''divizion'' (дивизион) is an artillery (also anti-aircraft and surface-to-air missile artillery) or cavalry battalion, and also a group of naval vessels. It was also used in relation to air force units and armoured train units. (An equivalent of a division is ''divizya'' (дивизия) in Russian.) * Poland: ''dywizjon'' is an artillery or cavalry battalion, including armoured cavalry, and also a group of naval vessels and armoured train units. (An equivalent of a division is ''dywizja'' in Polish). During World War II, Polish military aviation used a system in which the smallest independent air unit was the ''eskadra'' (approx. 10 aircraft). Two ''eskadry'' formed the ''dywizjon (''so it was the equivalent of the British squadron, e.g. "dywizjon 303" - " No. 303 Squadron" in RAF). * Yugoslavia and successor countries: term ''divizion'' or дивизион (also spelled "divizijun") is used instead of battalion in artillery and anti-aircraft artillery branch but also for naval units of battalion, regiment or brigade size. The Croatian Army at some point stopped using term "divizijun" in artillery and anti-aircraft artillery and the same term as in other branches is used instead ("bojna" i.e. "battalion"). The term "divizijun" is still used in the Croatian Navy and is the equivalent of a non-commonwealth regiment. (An equivalent of the English term "division" is ''divizija'' or дивизија in Serbo-Croatian.) * Bulgaria: ''divizion'' (дивизион) is an artillery or rocket artillery battalion, and also a group of naval vessels. (An equivalent of a division is ''divizya'' (дивизия) in Bulgarian.) Military units and formations by size