Updated

Poland is putting on its biggest military parade in years to mark its Armed Forces Day, with the president saying violence in Ukraine shows that conflict is still a "brutal reality" in Eastern Europe.

Fighter jets and military helicopters flew over Warsaw Friday as American and Canadian troops marched with hundreds of Polish soldiers.

The parade came on the Aug. 15 holiday that honors a stunning Polish victory against Russian Bolsheviks in 1920.

Referring to Russian aggression in Ukraine, President Bronislaw Komorowski said "we are living in a world where force means more than law."

He called on NATO to increase spending in reaction to Russia's modernizing of its own military.