Polish military members stand at attention as U.S. Defense Secretary Robert M. Gates participates in a wreath laying ceremony at the Polish Tomb of the Unknown Soldier in Marshal Jozef Pilsudski Square in Warsaw, Poland, April 24, 2007. Polish military members stand at attention as U.S. Defense Secretary Robert M. Gates participates in a wreath laying ceremony at the Polish Tomb of the Unknown Soldier in Marshal Jozef Pilsudski Square in Warsaw, Poland, April 24, 2007. SHARE: Download: Full Size (0.55 MB) Tags: Photo Essays Credit: VIRIN: 626915-G-QSZ17-162.jpg Photo Gallery