The presidential jack is used in military ceremonies attended by the commander-in-chief . Celebrations of the Constitution Day , May 3 ; Polish Armed Forces Day , August 15 ; and Independence Day , November 11 ( see Public holidays in Poland ) are typical occasions . For example , during the grand military parade on August 15 , 2007 in Warsaw , President Lech Kaczyński rode in a convertible jeep preceded by a mounted cavalry officer carrying the presidential jack , while a smaller jack was attached to the president 's jeep as a car flag . The jack also draped the coffins of President Kaczyński ( see Death and state funeral of Lech Kaczyński and Maria Kaczyńska ) and former President-in-exile Ryszard Kaczorowski after both died in the Smolensk air crash of 2010
Smolensk air crash
2010 Polish Air Force Tu-154 crash
Jack of the President of the Republic of Poland