The United States said Tuesday it would continue airdrops of aid to besieged Gaza, despite pleas from Hamas to stop the practice after it said 18 people had died trying to reach food packages. Hamas demanded that Israel, which isbesieging and relentlessly bombing Gaza, instead allow more aid trucks to enter the devastated territory, which the United Nations has warned is on the brink of a “man-made famine” after nearly six months of war. At least 32,414 Palestinians have been killed in Israeli attacks on Gaza, most of them women and children, since last October, according to the territory’s he…