A leaked Department of Defense memo to the Joint Chiefs of Staff highlights some of the details of the upcoming parade, according to CNN, which first obtained the memo.
The Pentagon memo did not include a cost estimate for the parade.
"I think confidence is silent and insecurity is loud", The Hill quoted Senator John Kennedy, a Louisiana Republican, as saying.
The parade, the first major one in the USA capital since 1991, will take place on November 11 in a salute to veterans, according to a Pentagon planning memo. The Veterans Day date means the parade will happen less than a week after election day, a day some have predicted will bring a "blue wave" of Democrats into office.
That memo, below, also states the parade will "highlight the evolution of women Veterans from separate formations in World War II to today's integrated formations". "Members of Congress from both parties have been critical of the idea of a military parade, questioning its cost and necessity".
Northern Command, which oversees USA troops in North America, will execute the parade. The president admired the country's celebrations and called the parade "magnificent". The Army's Old Guard Fife and Drum Corps will also make an appearance.
"President Trump is incredibly supportive of America's great servicemembers who risk their lives every day to keep our country safe", White House press secretary Sarah Sanders said after news got out.
In February, Trump officially told his generals to start working on plans for the parade.