21.   Already, Bosnian government troops have advanced in north and northeast of Bosnia.

22.   An ethnic Albanian commander, Shefket Musliu, however, said his soldiers would fight back if Serb troops advance from Oraovica into the buffer zone.

23.   American troops advance in the Ardennes salient in Belgium.

24.   As Taliban troops advance northward along the Salang Highway they have forced residents of the area to relocate to Kabul.

25.   As the Taliban took over the base, government troops advanced south toward Charasyab, and the two sides were only a short distance apart in some areas.

26.   As government troops advanced on Jaffna city, the rebels moved most of their forces and material to the eastern side of the peninsula and onto the mainland.

27.   At Pervomayskaya, Russian troops advanced in dozens of armored vehicles, and trucks towed up heavy artillery.

28.   But Yugoslav troops had advanced to better positions overlooking rebel strongholds.

29.   Cambodian troops advance toward Khmer Rouge stronghold.

30.   Cambodian troops advance toward Khmer Rouge position.