The Sebelsti Defense Force (SDF) are the main armed forces and national military of the Democratic Republic of Sebelsti. Under it, are four branches, the Land Forces, Air Force, Navy, and Special Operations Forces. The SDF is led by the Minister of Defense and the President, who acts as its commander-in-chief. It is the primary military of Sebelsti, a role it has played since its inception in 1984 after the 1983 Revolution. Nearly 30% of its 400,000 active units are conscripted, for periods of 1 year or less. It is one of the most powerful military forces in the region and among the most influential on Roblox. It is headquartered at the Octagon Complex in Port Sebelsti, which acts as an operating base for the SDF.