Advance of the Islamic Courts Union the UN Security Council resolution to deploy an African-led peacekeeping force known as IGASOM, delivery of humanitarian aid, as well as warnings against the spread of extremist and terrorist groups in the region, including Al-Qaeda. As part of Operation Enduring Freedom, the Combined Joint Task Force - Horn of Africa was established in Djibouti. It serves to monitor and check the spread of terrorism, as well as deal with piracy. It has also undertaken humanitarian missions in the region, but it has no mandate towards the conflict in Somalia. The US denies any direct military operations in Somalia, or in
Geology of Somalia and island arcs. In the Early Jurassic, the supercontinent Gondwana, which included Africa, began to break apart. The marine transgression of the Tethys Ocean flooded large parts of East Africa and Arabia and new sedimentary rock units were deposited. In the west of Somalia, the Cretaceous at the end of the Mesozoic brought crustal upwarping, which is preserved in the Yesomma Sandstone. Two major sedimentary basins began to form in Somalia during the Mesozoic, the Somali Coastal Basin and the Luuq-Mandera Basin, both filled with up to five kilometers of sedimentary rock. The basins formed due to the movements of