A multibillion-dollar expansion helped the canal accommodate king-size cargo ships. It might also be fueling ecological ...

Opened on Aug. 15, 1914, the Panama Canal was constructed ... concrete to use in the locks, labor strikes and leaks detected late last year. The expansion includes two new sets of lock complexes ...

Treaties ratified by the Senate in 1978 established permanent neutrality, but some Republicans regret that decision.

Trump has made several suggestions this week of ways to redraw the map. Here’s what to know about his interest in Greenland, ...