2000s
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010s
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020s
2020
2021
2022
2023
2024
2025
See also
*
List of wars: 2003–present
References
{{DEFAULTSORT:Battles in the 21st century
*
2001
The year's most prominent event was the September 11 attacks against the United States by al-Qaeda, which Casualties of the September 11 attacks, killed 2,977 people and instigated the global war on terror. The United States led a Participan ...