The Ministry of Defence is the central authority of the state administration for ensuring the defence of the Czech Republic (CR) controls the Armed Forces of the Czech Republic (ACR) and administers the military regions.

Professional army is a decisive part of the Armed Forces of the Czech Republic (ACR), which, according to the Czech Law No. 219/1999 Dig., referred to as the Defence Law, is comprised also of the Military Office of President of the Republic and the Castle Guard.

The primary mission of ACR is to ensure the military defence of the country against aggression and to meet commitments that come from international obligations and treaties of the Czech Republic on collective defence. It is also set to fulfil tasks within peacekeeping operations in regions of instability or conflicts, and to implement rescue and humanitarian missions both on the national territory and abroad.

The Czech military is engaged in the integrated NATO military structure, contributing to defence, operations and civil crisis management planning. It takes part in the procedural and organisational aspects of nuclear consultations, participates in joint exercises, and actively commits its troops for NATO-led multinational operations.

The ACR is also engaged in the EU military structure, as the Czech Republic became a EU member country on 1 May 2004. The Czech military participates in joint exercises and operations.

The supreme commander of the Armed Forces of the Czech Republic is President of the Republic, while the highest mililtary commander is Chief of the General Staff of ACR.

The ACR is formed by Joint Forces, and Support Forces.