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Railguns
Railguns use electromagnetism to fire a projectile at speeds of up to seven times the speed of sound, uses non-explosive rounds, and causes more destruction than traditional naval gunfire.
The US has two Aegis missile defense sites in NATO nations, one in Romania and another in Poland that the Pentagon expects to be operational by the end of this year. The US has said they're designed to protect Europe against a possible ballistic missile attack from Iran and pose no threat to Russia.
Currently, the United States nuclear arsenal is deployed in three areas: Land-based intercontinental ballistic missiles, or ICBMs; Sea-based, nuclear submarine-launched ballistic missiles, or SLBMs; and. Air-based nuclear weapons of the U.S. Air Force's heavy bomber group.
Orbital weaponry
As of September 2017, there are no known operative orbital weapons systems, but several nations have deployed orbital surveillance networks to observe other nations or armed forces. Several orbital weaponry systems were designed by the United States and the Soviet Union during the Cold War.
“There's no law of physics against the prospect of intercepting them, but the laws of physics make it extremely challenging – and create all of these constraints on how difficult it is to intercept it,” James Wells, a professor of physics at the University of Michigan, told the magazine.
US Air Force 'Rods From God' Kinetic Weapon Hit With Nuclear-Weapon Force.
In that case, only 500 out of 100 will make it to the United States. It will be enough for a nightmare. So only Russia can destroy the United States because they have 4200 nuclear bombs compared to 4000 for the United States.
The cities that would most likely be attacked are Washington, New York City and Los Angeles.
The Aegis ballistic missile defense-equipped SM-3 Block II-A missile demonstrated it can shoot down an ICBM target on 16 Nov 2020.
New START limits all Russian deployed intercontinental-range nuclear weapons, including every Russian nuclear warhead that is loaded onto an intercontinental-range ballistic missile that can reach the United States in approximately 30 minutes.
Russia's Tsar bomba: World's most powerful nuclear weapon of mass destruction.
A lot of great technology was developed during the Cold War. Things like GPS, the internet and microchips were all developed as part of the arms-race tech boom. Unfortunately, so was the Novichok nerve agent, the world's largest nuclear weapon and Russia's doomsday device, just to name a few. You read that right.
The deadliest weapon of all time was the 25-megaton hydrogen bomb. Its lethality index score is an astonishing 210,000,000,000. For context, the sword has a lethality score of 20. Created in the manic arms race of the Cold War, the B-41 hydrogen bomb is the deadliest weapon on the list.
Today's armed forces rely on space-based assets for reconnaissance, weather tracking, communication, navigation and more. The U.S. Air Force regularly launches GPS and missile-defense tracking satellites, and operates two classified X-37B robotic space planes.
The US Army is planning to demonstrate a 300-kilowatt laser weapon, its most powerful ever, next year. General Atomics Electromagnetic Systems (GA-EMS) and Boeing are building the device, which is the size of a shipping container and mounted on a heavy truck.
The United States
With a budget of $738 billion and 1,388,000 men and women in the armed forces, it boasts an awe-inspiring 6,125 nuclear weapons, 11 aircraft carriers, 68 nuclear submarines, 3,761 military aircraft, 867 attack helicopters, 6,209 tanks and 113 warships.
The B83 is a variable-yield thermonuclear gravity bomb developed by the United States in the late 1970s and entered service in 1983. With a maximum yield of 1.2 megatonnes of TNT (5.0 PJ), it has been the most powerful nuclear weapon in the United States nuclear arsenal since October 25, 2011.
Estimates of exact numbers vary but it is widely agreed Russia has the largest nuclear arsenal in the world. According to the Stockholm Peace Institute, Putin had 6,255 nukes as of January 2021. Other organisations monitoring nuclear proliferation put the total between 5,977 and 6257.
In 2013, the U.S. Air Force 846th Test Squadron and civilian researchers at Lawrence Livermore National Laboratory successfully test-fired a kinetic energy projectile, a tungsten-rich shell moving at 3,500 feet-per-second — more than three times faster than the speed of sound — on a specialized track at Holloman Air ...
While space currently is free of nuclear weapons, it is stocked with satellites that spy and guide weapons systems on Earth. These satellites, in turn, have long been considered strategic targets. The United States, Russia, China, and India have all tested antisatellite missiles.
Article IV of the Outer Space Treaty requires States party not to place nuclear or mass destruction weapons in Earth orbit, not to install such weapons on celestial bodies and not to station them in outer space. Testing any weapons on celestial bodies is also forbidden.