Gaza Strip Yahya Sinwar IDF Hostages Gaza Attack Attacks Rocket Attacks Israeli Security Hamas-linked individuals Hassan Hakashah Hamas Attacks October 7 Attack Khan Yunis Red Sea Hostage Cages Hamas' elite Nukhba unit Khan Yunis Brigade Israeli troops Gaza War Ahmed Ghoul Hostage Exchange Hostage Situations Leaders Psychological Warfare Operations Israeli Defense Forces Abduction Command Center Underground Bunker Tunnel Network