International peace can be maintained through several methods including balance of power, international law, international organizations, collective security, international morality, and disarmament and arms control. Balance of power involves preventing any single state from becoming too powerful. International law and organizations like the United Nations help codify rules and bring states together to resolve issues peacefully. Collective security and international morality establish norms to discourage aggression and promote cooperation. Disarmament aims to reduce arms and the risk of conflict.