The Tanzania People's Defence Force (TPDF) (Kiswahili: Jeshi la Wananchi wa Tanzania (JWTZ)) is the armed forces of Tanzania, operating as a people's force under civilian control. It is composed of five branches or commands: Land Force (army), Air Force, Naval Command, National Service, Headquarter (MMJ). Tanzanian citizens are able to volunteer for military service from 15 years of age, and 18 years of age for compulsory military service upon graduation from secondary school. Conscript service obligation was 2 years as of 2004.