Left to right

Polish, Soviet, Czechoslovakian, Bulgarian, Hungarian, East German

With the Pole, you can make out polish emblem on his helmet, the the Soviet blue beret and Telnyashka (striped under shirt), showing he is a Soviet Airborne soldier, the Czechoslovakian has the unique VZ 58 rifle, the Bulgarian has the distinctive splinter pattern camoflage, the Hungarian has the distinctive AMD-63 rifle, the eat German has the distinction "rain pattern" khaki camouflage and wide east German helmet.