DEIR AL-BALAH, Gaza Strip (AP) — The Israeli military has rounded up hundreds of Palestinians across the northern Gaza Strip, separating families and forcing men to strip to their underwear before trucking some to a detention camp on the beach, where they spent hours, in some cases days, subjected to hunger and cold, according to human rights activists, distraught relatives and released detainees themselves. Palestinians detained in the shattered town of Beit Lahiya, the urban refugee camp of Jabaliya and neighborhoods of Gaza City said they were bound, blindfolded and bundled into the backs of trucks.