The US threatened Israeli occupation by cutting some military assistance if they did not boost humanitarian aid access to Gaza within 30 days.

The written warning from the Biden administration to Netanyahu’s government is the strongest known formal caution issued to the American ally since the start of the war in Gaza.

In the letter, signed by US Secretary of State Antony Blinken and Defence Secretary Lloyd Austin on Tuesday, the US said it has “deep concern” about “the deteriorating humanitarian situation” in the region.

According to the letter, Israeli occupation denied or impeded nearly 90% of the humanitarian aid being transported within Gaza last month

It also stated that evacuation orders have forced almost two million people into a narrow strip where they are at “high risk of lethal contagion.”