Britain would not hand land over to the U.S. that was valuable and fur-trade routes.
In the 1700s, the Ottoman Empire began to rapidly deteriorate following the Russo-Turkish Wars. A series of treaties created during that time caused the empire to lose some of its economic independence. ... Following the end of World War I, the Ottoman Empire officially came to an end with the Treaty of Sevres.
Generally speaking, after the fall of the Soviet Union "<span>a. ethnic conflicts and separatist movements threatened stability," since there was an immediate collapse in the major power structure that had "tied" the nation together. </span>