However, the level of control exerted in these spheres varied and was not absolute. For instance, France and the United Kingdom were able to act independently to invade (with Israel) the Suez Canal (they were later forced to withdraw by joint U.S. and Soviet pressure). Later, France was also able to withdraw from the military arm of the North Atlantic Treaty Organisation (NATO). Cuba, as another example, often took positions that put it at odds with its Soviet ally, including momentary alliances with China, economic reorganizations, and providing support for insurgencies in Africa and the Americas without prior approval from the Soviet Union.