US Secretary of State Anthony Blinken has issued a warning to Israel over its handling of aid in Gaza, following mounting criticism of the US for failing to prevent civilian casualties. Blinken pressed Israeli leaders over reports of forced displacement and a surrender-or-starve tactic against civilians in northern Gaza. Israel claims its offensive in the region is aimed at Hamas fighters, but aid groups have warned of the risk of starvation for civilians. Blinken's warning on aid follows a letter co-signed by US Defense Secretary Lloyd Austin, giving Israel 30 days to increase aid or face potential cuts in military assistance.