Davíð's two governments were staunch allies of the United States and strongly in support of NATO, of which Iceland is a founding member. He firmly supported the actions undertaken by the U.S. and its allies in Afghanistan and Iraq, taking much criticism from the Icelandic Left. Since the fall of the Soviet Union, there has been some uncertainty about whether the United States defence force could or should remain in Iceland, having been invited there in 1951, at the height of the Cold War. Davíð has not been enthusiastic about joining the European Union.