CHRONOLOGY: Chaos in Somalia

(Reuters) - Explosions shook the Somali capital, Mogadishu, on Sunday for a fifth day of battles between insurgents and allied Somali-Ethiopian troops.

Here is a chronology of events in Somalia:

November 1991 - Power struggle after the overthrow of dictator Mohamed Siad Barre between clan warlords Mohamed Farah Aideed and Ali Mahdi Mohamed kills and wounds thousands of civilians.

December 1992 - U.N. Security Council endorses full-scale U.S.-led military operation. A week later U.S. Marines arrive on Mogadishu's beaches in "Operation Restore Hope".

October 1993 - Eighteen U.S. Army Rangers and one Malaysian are killed when Somali militias shoot down two U.S. helicopters in Mogadishu and a battle ensues. Hundreds of Somalis die in the fighting. Battle depicted in book and film "Black Hawk Down". U.S. mission formally ends in March 1994.

October 2004 - In 14th attempt since 1991 to restore central government, lawmakers elect Ethiopian-backed warlord Abdullahi Yusuf as president. In December, Prime Minister Mohamed Ali Gedi swears in 27 ministers in Kenya.

February 2006 - Lawmakers arrive in the southern city of Baidoa for the first meeting of the country's parliament on home soil.

June 2006 - The Somalia Islamic Courts Council (SICC) seizes the capital Mogadishu from U.S.-backed warlords and take control of parts of southern Somalia.

September 25 - Yusuf escapes a bomb attack that kills five outside parliament in Baidoa.