During World War I, British and French troops occupied Cameroon. After the war, as part of the Versailles treaty agreement, the League of Nations partitioned the Colony of Cameroon between Britain and France in 1919. In 1961 the modern state of Cameroon was created by the unification of the British and French colonies. The 1972 constitution (amended in 1996 and 2008) provides for a strong central government dominated by the president. Armed with modest oil resources and favorable agricultural conditions, Cameroon has one of the most well-endowed primary commodity economies in sub-Saharan Africa. Its major export commodities include crude oil and petroleum products, timber, cocoa beans, bananas, coffee, and cotton.