Revolution Day in Sudan is observed every June 30 as a national holiday commemorating the bloodless coup of 1989. This day marks the overthrow of Prime Minister Sadiq al-Mahdi's government by military officers led by Colonel Omar al-Bashir, who subsequently established a military junta. The coup was a response to ongoing civil war and political instability that began with President Gaafar Nimeiry's imposition of Sharia law in 1983. The Sudan People's Liberation Army, formed in 1983, was a key opponent during this period. Following the coup, al-Bashir executed purges within the military and political spheres to consolidate power, ultimately becoming President of Sudan in 1993. The holiday serves as a reminder of this significant shift in Sudan's governance and political landscape.