The MH-139 Grey Wolf helicopter, which replaces Vietnam War-era Hueys, will be used to patrol nuclear missile fields across the northern United States.
The latest aid comes as the U.S. military remains deeply overdrawn and needs at least $10 billion to replenish all the weapons it has pulled for Ukraine.
The Pentagon stopped accepting deliveries of the newest F-35 Joint Strike Fighters in summer 2023 as software problems snarled the jets' latest upgrades.