During the two-year Gaza War, an embattled Hamas has encountered a host of long-standing rivals, many of whom are affiliated with powerful local clans and armed groups.
Since the onset of the cease-fire between Israel and Hamas on Oct. 10, the terrorist group has attempted to reassert itself in the Gaza Strip, killing opponents in an enforcement crackdown after getting what appeared to be U.S. approval to act as temporary police in the war-torn enclave.