Romania to defend US allies. Few countries around the world have the means to implement

their own missile defense system, so which ones do?

Well, missile defense is incredibly complex and expensive, and has been described as trying

to “hit a bullet with another bullet”. Originally it was actually a byproduct of

the Cold War. As Russia and the US squared off with their nuclear weapon stockpiles,

the threat of attack kept both from actually using any. But it was clear that whichever

side perfected their defensive technology would have the upper hand, and in a strange

twist, better defense actually increased the risk of nuclear war. So in 1972, the two signed

the Anti-Ballistic Missile Treaty, which limited their missile defense to cover just the country

capitals, Washington DC and Moscow, as well as their missile launch sites.

But just ten years after it was signed, the United States announced the disastrous Strategic

Defense Initiative, nicknamed Star Wars. This system was part of President Ronald Reagan's

attempts to end the doctrine of mutually assured destruction, and worked, basically by shooting

lasers from space. The leader of Russia’s Communist Party called the plan “insane”,

and so did many of Reagan’s critics. After 30 billion dollars in spending, Star Wars

was eventually shut down and transformed into America’s National Missile Defense program,

which relies on radar and satellite tracking to take down incoming missiles. Since 1985,

the US has spent roughly $180 billion dollars on missile defense alone.

In 2002 the US withdrew from the Anti-Ballistic Missile Treaty, and placed anti-ballistic

missiles on Navy ships patrolling around the world, as well as in the Black Sea near Russia,

citing security concerns from rogue states and terrorists.

Another country heavily reliant on missile defense is Israel. The program, called The

Arrow, was built and funded in collaboration with the United States. The Arrow was introduced

when it was revealed that a number of neighboring Middle Eastern states had acquired long range,

surface-to-surface missiles. But Israel also sees a large number of short-range rocket

attacks from Hamas in the Gaza Strip. To combat that problem, the country also has what they

call “the Iron Dome”, which uses faster and smaller missiles, and has a reported success

rate of about 90%

While 31 countries have ballistic missiles, only five countries have their own form of

missile defense. Besides the US, Israel, and Russia, missile defense systems are also operated

by India as well as France, which shares its technology with Italy and the UK. But despite

the huge cost and significance of defending against potential nuclear missiles, the reality

of these systems is that they frequently miss their targets in testing, and may not be nearly

as reliable as they need to be for protection.

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Since defense systems mainly work to stop nuclear attacks, it's pretty important to

know who actually has the capability to launch one. So, which countries have nuclear weapons?

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