51.  As House members debated the impeachment of the commander in chief, American forces continued their aerial bombardment of Iraq.

52.  As he has many times on the stump, Bradley said he would try to limit the use of American military force in regional or ethnic conflicts overseas.

53.  As larger portions of Afghanistan fall under opposition control, American forces are scouring sites where al-Qaida is suspected of testing or producing chemical or biological weapons.

54.  At Khanabad, American forces sleep inside the base, and the approaches are guarded by multiple roadblocks.

55.  At the same time, Bradley has often urged caution about using American military forces abroad to quell ethnic disputes or calm regional tensions.

56.  At the Pentagon on Wednesday, a senior military officer confirmed that American forces were in Kandahar accompanying opposition leaders.

57.  Because of Omani sensitivities, however, the presence of American forces is not officially acknowledged by either side.

58.  Because of enemy troops, it was six months before American forces could reach the crash site.

59.  Beyond the comic aspects of the search, however, lies a potentially serious problem for the American forces as they feel out their political role here.

60.  Biden said he would have preferred that the Afghan authorities had notified American forces, who could have captured Turabi.