Haitians fill sandbags for the U.S. Army at the airport in Port-au-Prince, Haiti, as a U.S. soldier stands guard, Tuesday, Sept. 20, 1994. A day after the first wave of American soldiers thundered in, many Haitians showered Americans with smiles, waves and hugs. But both groups were cautious, with the Americans mindful of the way initially grateful Somalians quickly soured on their presence during the mission to restore peace in Somalia. (AP Photo/Daniel Morel)