Yes, many countries have sent food, but Israel has been throttling the supply by not letting trucks through at the crossings. Hence, the air drops and trying to build a pier.

Israel controls all access, by land, air, sea They only let their allies do this.

That said, Jordan was the first country to air drop supplies.

Typically most countries would organise aid through a dedicated charity.

But since Israel has been murdering people from those charities, its only now that the UK is sending military assets, because even Israel isn’t stupid enough to kill Nato military personnel at this moment (though they would absolutely do that at other times cough USS Liberty cough

Israel is armed with U.S. weapons to stop any aid going to their genocide victims. The IDF attacks anyone helping the Gazan families they are working so hard to exterminate.