During the Cold War, international relations and international law were deeply shaped by the struggle for global dominance between the United States and the Soviet Union. The clashes between the superpowers reverberated in legal issues relating to the functioning of the United Nations, the use of force, nuclear nonproliferation, human rights, etc. The many newly independent states, caught in the middle, repeatedly made claims for reform and initiated rule-making initiatives, but with limited results. After the end of the Cold War, the United States, its Western allies, and their shared economic and geopolitical interests remained largely unchallenged in the international arena.