Detailed Army plans for a potential military parade on Donald Trump’s birthday in June call for more than 6,600 soldiers, at least 150 vehicles, 50 helicopters, seven bands and possibly a couple thousand civilians, The Associated Press has learned.

The planning documents, obtained by the AP, are dated April 29 and 30 and have not been publicly released. They represent the Army’s most recent blueprint for its long-planned 250th birthday festival on the National Mall and the newly added element — a large military parade that Trump has long wanted but is still being discussed.

While the slides do not include any price estimates, it would likely cost tens of millions of dollars to put on a parade of that size. Costs would include the movement of military vehicles, equipment, aircraft and troops from across the country to Washington and the need to feed and house thousands of service members.