The U.S. President has been pardoning turkeys on a yearly basis as of 1989 in the White House.
president
Rebel
Here is a hint- the battlefield was in Gettsyburg PA.
Watergate
The National Veteran's Day ceremony takes place at Arlington National Cemetery, outside of Washington. DC.
In the US, Veteran's Day National Ceremony is held on November 11.
Harry Truman came to Everglades National Park in 1947 to participate in the dedication ceremony. I am not sure what "land on Everglades" means.
Theodore Roosevelt
Arlington National Cemetery
The official headquarters of the President of Guatemala is the National Palace, or Palacio Nacional de la Cultura. Notably, however, this doesn't necessarily mean that the president lives in this building.
National Building was created in 1905.