Army planning documents dated April 29 and 30, which were obtained by the Associated Press, call for a parade from Arlington, Virginia, to the National Mall, which would include about 6,600 soldiers, 150 vehicles, and 50 helicopters. The heavier vehicles would join in mid-procession to avoid going over the bridge from Virginia:

[The documents] said the parade will include soldiers from at least 11 corps and divisions nationwide. They said it would involve a Stryker battalion with two companies of Stryker vehicles, a tank battalion and two companies of tanks, an infantry battalion with Bradley vehicles, Paladin artillery vehicles, Howitzers and infantry vehicles.

The plans note that while the parade will begin near the Pentagon, the heavy, tracked vehicles — which would include the Strykers — would be stationed near the Lincoln Memorial and join the procession there, so they will not go over the bridge from Virginia

Fox News said historic military reenactors would also be involved:

The parade will have reenactors, equipment and more from the Revolutionary War, Civil War, Spanish-American War, World War I, World War II, Korean War, Vietnam War, Gulf War/Desert Storm and the Global War on Terror (Iraq, Afghanistan and Syria). It will also feature active-duty service members and students at U.S. military academies.

The military procession will begin at 6 p.m. at the Pentagon’s north parking lot, according to Axios.