Israeli strikes across Gaza killed at least 18 people overnight and into Sunday, according to medics and witnesses, as the United States said it would veto another draft UN ceasefire resolution. An airstrike in Rafah overnight killed six people, including a woman and three children, and another strike killed five men in Khan Younis, the main target of the offensive over the past two months. In Gaza City, which was isolated, largely evacuated and suffered widespread destruction in the initial weeks of the war, an airstrike flattened a family home, killing seven people, including three women, ac…