Nearly 30 UK Armed Forces personnel will be sent to join the Nato Kosovo Force (KFOR) in early 2017.
UK Defence Secretary Michael Fallon said: “There are significant security and stability challenges in Western Balkans.
“Nato remains a cornerstone of our defence. By continuing to defend the security of Europe, Britain’s security is strengthened at home.”
The newly deployed troops will be based in the KFOR headquarters in Pristina and support KFOR’s ability to carry out intelligence, surveillance and reconnaissance.
The year-long deployment follows a request from Nato that allies offer further support to KFOR.
KFOR began as a peacekeeping force in the late 1990s and has now evolved into a smaller, more flexible body of around 4,200 troops.
It is currently one of the main security providers in Kosovo, the UK MoD said in a statement.
Troops are contributed to KFOR by 30 countries, including Germany, Italy, Turkey, Poland and the US.
The UK also supported the EU Force (EUFOR) in Bosnia and Herzegovina in 2015 to maintain security in the Balkans area.
In addition, the UK has deployed more than 3,000 military personnel deployed on operations worldwide.