Arab Army Secondary Reserve

The Arab Army Secondary Reserve (Arabic: احتياطي الجيش العربي الثاني aḥtiyāṭī al-jaysh al-‘arabī ath-thānī) is the secondary reserve component of the Arab Army, the land component and largest service branch of the Arab Union's military, the Union Defence Forces. Reservists of the Secondary Reserve are typically less well-trained than reservists of the Primary Reserve, and are called up for active duty only after all members of the Primary Reserve have already been called. As of 2021, there are an estimated 533,400 members of the Secondary Reserve. The remaining approximately 520,000 reservists are members of the Tertiary Reserve, the third and smallest army reserve force of the Arab Union.