The reality today is rising unilateralism, increasing fragmentation, escalating complexity, diminished public trust and reduced multilateral co-ordination.
When agreement by multiple parties is absolutely requiredfor example, in the context of international trade policiesbilateral agreements (involving two participants at a time) are usually preferred by proponents of unilateralism.
The foreign policy neophyte, who irked allies with his strutting unilateralism and hostility to global treaties, was commander-in-chief of a superpower at war.