21.   The heavy bombers were used during the Persian Gulf War to launch cruise missiles at Iraqi positions.

22.   The heavy bombers struck near the key border crossing point of Morini, sending towering clouds of black smoke into the sky from a hillside.

23.   U.S. jets prowled the skies over the battle area and detonations from heavy bombers could be heard south of Gardez.

24.   The Russians use everything from tanks and multiple-rocket artillery to heavy aerial bombers.

25.   The heavy bomber was in a steep bank before spinning to the ground and blowing up, killing all four people.

26.   The ministry statement said Jian bombers, heavy bombers and helicopters took part.