Israeli air and ground assaults continue in Gaza, intensifying concerns about the fragile U.S.-brokered ceasefire with Hamas. The Palestinian Civil Defense reported four people killed in two separate incidents in the Al-Shifa area, while Israeli forces claim they targeted militants crossing the designated “yellow line.” Residents say widespread destruction makes the line nearly impossible to identify. Both Israel and Hamas accuse each other of violating the ceasefire. At least 42 people, including children, were killed in Israeli airstrikes on October 19, which Israel calls retaliation for the killing of two soldiers by Hamas, a claim the group denies. Humanitarian aid delivery faces delays due to multiple checkpoints, despite Israel announcing a partial resumption of the ceasefire. U.S. envoys, including Steve Whitlock and Jared Kushner, have met with Israeli officials, while Vice President J.D. Vance is scheduled to visit. Discussions on Hamas disarmament and Gaza administration reforms remain contentious.