Idara ya Vita inasimamia mambo yote yanayohusiana na vikosi vya kijeshi vya Jeshi na polisi, pamoja na mikataba, kazi, vifaa vya kijeshi na mambo mengine yanayofanana. Pia ina jukumu la vyuo vya kijeshi, misafara ya kijeshi, na kila kitu kinachohitajika katika utamaduni wa Kiislamu na utamaduni wa jumla unaohitajika kwa Jeshi, pamoja na kila kinachohusiana na vita na maandalizi yake. Mkuu wa idara hii anaitwa Amiri wa Jihadi.

The War Department is in charge of all the affairs connected to the armed forces of the Army and police, and the treaties, tasks, military equipment and similar. They are also responsible for the military colleges, expeditions and everything that is necessary from the Islamic culture and the general culture necessary for the Army, as well as everything connected to war and its preparation, and the head of this department is called the Amir of Jihad.

Idara ya vita ni mojawapo ya taasisi za Dola, na mkuu wake anaitwa Amir wa Jihadi, badala ya meneja wa Jihadi. Hii ni kwa sababu Mtume ﷺ alikuwa akawaita viongozi wa jeshi Umara'. Ibn Sa'd alipokea kwamba Mjumbe wa Allah ﷺ alisema.

The war department is one of the State’s institutions, and its head is called the Amir of Jihad, rather than the manager of Jihad. This is because the Messenger (pbuh) used to call the leaders of the Army Umara’. Ibn Sa’d narrated that the Messenger of Allah (pbuh) said.