Queen Elizabeth II is the monarch of fourteen countries in addition to the United Kingdom. Barbados’s transition to a republic has revived debate over the future of the Crown.

The succession from Queen Elizabeth II to Charles could accelerate anti-monarchy movements in countries where the Crown is still head of state.

Fears of a Russian military offensive against Ukraine are back. NATO should bolster support for Kyiv and the United States should signal new efforts to thwart a controversial Russian energy pipeline…

A look at the post-9/11 war powers law that the Trump administration could use to justify conflict with Iran.

Canada’s federal election poses a stiff test for the governing Liberal Party, with implications for its global role on issues such as climate change.