Hundreds of American citizens are trapped in the besieged Gaza Strip under constant Israeli bombardment and have received no help in finding ways to escape, according to interviews with individuals on the ground. The State Department says as many as 600 Americans are in the enclave that since Oct. 7 has come under heavy retaliatory airstrikes by Israel after the Palestinian militant group Hamas, which governs Gaza, launched a terror attack against southern Israel that killed at least 1,300 people. “America’s not helping us, Biden’s not helping us, the embassy is not helping us,” Amir Kaoud, a Palestinian-American at the...