The Indian Army maintains national peace and security by defending the country from external threats and attacks. The seven commands: Eastern, Western, Northern, Central, Southern, South-Western, Training command, take care of the defense needs of the nation. Comprising of Combat Units (including artillery, infantry, and mechanized infantry ), Air Defense, Engineering and IT Units, Army Service Corps (providing medical and other allied services ), and Education Units(training for young recruits and officers), the Army provides ample opportunities to young aspirants.