Russian forces dropped cluster munitions just outside a hospital in Vuhledar, eastern Ukraine on Thursday, killing four civilians and injuring another 10, according to Human Rights Watch. Through photographs of remnants supplied by hospital staff, the bomb used in the attack was identified as a cluster munition warhead delivered by a Tochka ballistic missile \- the same as those used to kill 12 civilians at a school in Sarmin, northern Syria in January 2020. Both Russia and Ukraine stockpile the weapon. Because of their indiscriminate impact and threat to civilian life, cluster munitions are b…