Russian airborne infantry.  The infantryman to the far right is carrying an AK-74 (chambered to fire a 5.54 mm round, as opposed to the AK-47's 7.62 short).   Underneath the barrel of the AK-74 is a GP-25 40mm grenade launcher.  In spite of similar appearances, this weapon is NOT the AK-47 that has been so widely proliferated in the third world.  The AK-74 series of weapons fire a bullet more similar to the 5.56mm round used in the U.S. M-16, M-4, and M249 SAW.