Valeriy Zaluzhny looks to be maneuvering to replace Ukraine’s wartime president—perhaps with America’s support.

The U.S. may not be able to influence the outcome of the Israel–Gaza war, but it can work to avoid some of the consequences.

The current trajectory of U.S.–Iran relations epitomizes the perennial tension between idealistic ambitions and realist constraints that has long characterized American foreign policy in the Middle ...