SYLVIE CORBET and JEFFREY SCHAEFFER 

COLLEVILLE-SUR-MER, France (AP) -- Army Gen. Mark Milley, chairman of the Joint Chiefs of Staff, says the United States and allied countries will keep providing "significant" support to Ukraine, out of respect for the legacy of D-Day soldiers.

In an interview Monday with The Associated Press, Milley said Russia's war on Ukraine undermines the rules established by Allied countries to guarantee peace after the end of World War II.

He accused Russia of an "open, unambiguous act of aggression." He spoke in Normandy on the 78th anniversary of the D-Day invasion, which helped defeat Hitler and lead to the end of World War II.

Dozens of veterans — now all in their 90s, from the U.S., Britain, Canada and elsewhere — were taking part in poignant D-Day ceremonies.