People wait to visit the T-84 tank during army show at Lake Jarun in Zagreb, Croatia, May 27, 2012. Croatian armed forces celebrated the 21th anniversary and showed their skills to the people in a two-day event. (Xinhua/Miso Lisanin)

　　Soldiers of the Croatian army Honour Guard Battalion performs during army show at the central Jelacic square in Zagreb, Croatia, May 27, 2012. Croatian armed forces celebrated the 21th anniversary and showed their skills to the people in a two-day event. (Xinhua/Miso Lisanin)

　　Wings of Storm, the aerobatic team of the Croatian Air Force, performs during army show at Lake Jarun in Zagreb, Croatia, May 27, 2012. Croatian armed forces celebrated the 21th anniversary and showed their skills to the people in a two-day event. (Xinhua/Miso Lisanin)

　　A boy tries on a pilot`s helmet during army show at Lake Jarun in Zagreb, Croatia, May 27, 2012. Croatian armed forces celebrated the 21th anniversary and showed their skills to the people in a two-day event. (Xinhua/Miso Lisanin)