The Lithuanian Armed Forces are the military of Lithuania. The Lithuanian Armed Forces consist of the Lithuanian Land Forces, the Lithuanian Naval Force, the Lithuanian Air Force and the Lithuanian Special Operations Force. In wartime, the Lithuanian State Border Guard Service becomes part of the Lithuanian Armed Forces. A special security department handles VIP protection and communications security.

The Lithuanian Land Forces (LLF) form the backbone of the Lithuanian Armed Forces, capable of acting as an integral part of NATO forces. Lithuanian Land Forces consist of three brigades, the Engineer Battalion, and the National Defence Volunteers Division.