An escalating civil war threatens to break apart a country of roughly 55 million people that sits between China and India. That has international consequences, but the conflict hasn’t commanded wide attention. Over the past six months, resistance fighters in Myanmar’s hinterlands have been defeating the ruling military junta in battle after battle, stunning analysts. That raises the possibility that …

The drone combat in Ukraine that is transforming modern warfare has begun taking a deadly toll on one of the most powerful symbols of American military might — the tank — and threatening to rewrite how it will be used in future conflicts. Over the last two months, Russian forces have taken out five of the 31 American-made M1 Abrams …

The prospect of Robert F. Kennedy Jr. threatening to upend the presidential race went from an idea to a reality in one of the country’s most consequential battlegrounds on Thursday, when Mr. Kennedy qualified for the ballot in Michigan. The decision by the Natural Law Party to grant Mr. Kennedy its ballot line in November ensures he will be a …