But Russia has vowed to shoot down any US missiles with its air defenses, including the S-400, its most advanced missile defense system.
Russia's A-50U airborne early warning and control plane could help Russian missile defenses with targeting acquisition, as well as disrupt the US' missile targeting, according to Russia Today, a state-owned media outlet.
The "Russian military may use a limited response - using airborne electronic warfare equipment to harass the American ships, messing up their target acquisition, geolocation or even AEGIS anti-aircraft systems," RT reported.
The A-50U is a "giant flying data processing center" used to detect and track "a number of aerial (fighter jets, bombers, ballistic and cruise missiles), ground (tank columns) and surface (above-water vessels) targets," Sputnik, another Russian state-owned media outlet, previously reported.
It also informs "command centers about the developments in the air and sea, and directing fighter and strike aviation."
Here's what it can do: