See D.C. route maps for Trump's military parade celebrating the Army's 250th anniversary

A military parade through the streets of Washington, D.C., is being held to celebrate the U.S. Army's 250th anniversary on Saturday, June 14 — which also happens to be President Trump's 79th birthday. Army officials say about 6,600 soldiers, 150 vehicles and more than 50 aircraft are set to participate.

The parade along the National Mall will be free and open to the public. Hundreds of thousands are expected to attend the festivities, D.C. officials said.

The parade is scheduled to begin at 6:30 p.m. EDT.