Much has already been delivered What NATO countries are sending

Much has already been delivered What NATO countries are sending to Ukraine in terms of weapons

US has already delivered heavy weapons
The US, by far NATO’s strongest military partner, has promised the following heavy weapons and has already delivered some of them: Eleven Russian-made Mi-17 helicopters, 200 M113 armored vehicles, hundreds of Humvee general purpose armored vehicles, hundreds of drones and a total of 90 howitzers with a caliber of 155 millimeters plus a good 180,000 associated artillery shells. According to the US military, Ukraine also received 1,400 Stinger anti-aircraft missiles, more than 5,500 Javelin anti-tank guided missiles, 14,000 other armor-piercing weapons, and more than 50 million rounds of ammunition.