The strike came shortly after the Syrian military announced that it regarded the seven-day partial cease-fire as over.
Barry Johnson, said the involvement of NATO through the American soldiers was a one-time initiative aimed at supporting a partial cease-fire agreed to on Sunday.
A partial cease-fire that started on Monday continues to steadily unravel after it was declared with much fanfare by the United States and Russia.
"The Annan plan has six points, and we want to see the implementation of the six, not a partial cease-fire," he said.
A3 Shaky Cease-Fire in Macedonia A partial cease-fire was accepted by the Macedonian government and ethnic Albanian rebels, after three days of heavy fighting just six miles from the capital, Skopje.
After intense backroom negotiations and quiet compromises with militant Palestinians, Yasir Arafat has achieved a partial cease-fire in each of the conflicts he confronts: one with Israel, the other with extremists in his own ranks.
On Monday, United States soldiers, part of the NATO peacekeeping force to neighboring Kosovo, helped transport some 320 fighters from the town, Aracinovo, as part of a partial cease-fire deal aimed at moving the battle away from the capital.
Unofficially, NATO took a first, unplanned step last week, when American soldiers with the alliance helped escort some 300 armed rebels away from Aracinovo, as part of a partial cease-fire to push the war back from the capital.
After the Syrian military statement, residents in rebel-held sections of Aleppo reported intense aerial attacks, shattering the relative calm that the partial cease-fire had provided for the past week.
Publicly, the Obama administration said it held Russia responsible, in its role as a sponsor of the partial cease-fire agreement that it reached last week with United States.
"We went from paradise to hell," said Mr. Salmo, who had been drinking tea on his rooftop a few miles away minutes before the attack, enjoying the relative quiet of the partial cease-fire.
