People gather for a protest calling for the return of 40 children who are among the roughly 240 hostages believed held by Hamas militants in the Gaza Strip and to mark World Children's Day, across from UNICEF offices in Tel Aviv, Israel, Monday, Nov. 20, 2023. The hostages, mostly Israeli citizens, were kidnapped during an Oct. 7 Hamas cross-border attack in Israel and have been held in Gaza since then. (AP Photo/Oded Balilty)