Why does the US want to deploy a missile shield close to Russia's border?

Technically, the US has tested many types of missile defense weapons, paying special attention to the ability to intercept intercontinental ballistic missiles (ICBMs) capable of carrying enemy warheads.

During ICBM launches, intercepting missiles during their mid- and terminal phases (when the warheads are released and return to Earth orbit at speeds approaching the first-order cosmic threshold) is very difficult and can be said to be almost impossible. This has been demonstrated through the failed tests of the NMD Program.

Aegis offshore missile defense complex.

The US also pursued a missile defense weapons program using high-energy beams, especially laser beams. However, technical obstacles such as: Laser beams lose energy quickly in the atmosphere, laser weapons need large energy supplies... caused this ambitious weapons development program to fail.

Meanwhile, the ability to intercept an enemy ICBM in the first launch and acceleration phase is considered very high due to technical factors: When leaving the launch pad and accelerating, the enemy missile cannot maneuver due to gravity. Because this launch phase only lasts a few minutes, the ability to intercept is only highly effective when the interceptor missile complex is placed as close to the target as possible.

Interceptor missile in the Aegis offshore missile defense system.

With the success of the BMD naval missile defense program with the Aegis ship-based fire control system combined with SM-2 and SM-3 interceptor missiles to intercept targets in the low orbit of the atmosphere, the US is completely confident in its ability to intercept ballistic missiles if Aegis offshore is placed at a close enough distance. The reason to prevent the risk of missile attacks from Iran is just an excuse, as the US increasingly wants to place Aegis offshore close to the Russian border.

According to qdnd.vn