WHO warns of high risk of polio outbreak in Gaza and beyond due to poor health and sanitation conditions ■ House Speaker Johnson threatens to arrest anyone who disrupts Netanyahu's Congress speech ■ Israeli strike in Tul Karm kills city's Hamas commander ■ Japan imposes sanctions on four violent Israeli settlers ■ Hamas and Fatah say they signed declaration vowing to form unity government ■ Here's what you need to know 291 days into the war
