The subordinate salutes first and maintains the salute until the superior has responded in kind. A U.S. presidential death also involves 21-gun salutes and other military traditions. Multiples of 21-gun salutes may be fired for particularly important celebrations. The troops were greeted by cheering Austrians with Nazi salutes, Nazi flags, and flowers. Veterans Day is observed with memorial ceremonies, salutes at military cemeteries, and parades. This included Nazi salutes, monkey chants and racist booing. The ceremonies are observed with memorials and military salutes. These unusual regimental salutes are mannerisms which are lost during official ceremonies. Outside, Captain Heidemann salutes von Klugemann who walks off with his wife. Today it is preserved as a state park and fires occasional ceremonial salutes. Also controversial were the apparent Nazi salutes made by the crowd toward the couple. On this occasion, the state offers the sacrifices of buffaloes under the gunfire salutes. As the Doctor leaves for the last time, Mott tearfully salutes him. During the visit the Duke gave full Nazi salutes. The custom of firing cannon salutes originated in the Royal Navy.