Story Highlights About 20 world leaders gathered in Poland to mark the start of World War II Attack set off chain of events that embroiled all of the world's major powers Germany's pre-dawn invasion ...

During World War II, the Axis powers operated numerous prison camps. German concentration camps were central to Nazi racial ...

Our first in-house map was produced during World War I. By the Second World War, the White House was asking for them by name.

For more than a decade, Poland has been building up for the worst case scenario: becoming the front line in a war between ...

Poland's President Andrzej Duda on Sunday slammed Russia's military actions as "imperialist tendencies" at ceremonies in Warsaw marking the 80th anniversary of the outbreak of World War II. Polish ...

Polish Prime Minister Donald Tusk on Wednesday said his country is the closest to open conflict since World War II, according to multiple reports, likely referring to Russian drones that breached ...