21st Century
- Sierra Leone Civil War (2000)
- War on Terror (2001–Present)
- War in Afghanistan (2001–Present)
- Iraq War and Iraqi insurgency (2003–2009)
- Libyan Civil War (2011)
Read more about this topic: Military History Of The United Kingdom
Famous quotes containing the word century:
“It is only the enlightened ruler and the wise general who will use the highest intelligence of the army for the purposes of spying, and thereby they achieve great results.”
—Sun Tzu (6–5th century B.C.)