To Trident or not to Trident

The dilemma of nuclear deterrence in the age of austerity
The last line of defense?

The last line of defense?

How does a middle power remain relevant? One of the most important aspects of global power in the post World War II period is the possession of nuclear weapons. Although only two nations on Earth – the US and Russia – possess nuclear arsenals capable of practically annihilating the planet, the nuclear arsenals of the UK, France and China are large enough to deter any potential adversary from daring to attack it with nuclear weapons itself. Such an exchange between the US and Russia was known as MAD: mutally assured destruction. Although a country like Britain could not conceivably assure the destruction of a country as vast as Russia or China, it could indeed wipe out most of their large cities and lay waste to a significant part of the country’s economic and military infrastructure…

…with just one submarine.

We’ve all heard of Trident but few people really understand the way it works. The Trident is a US-designed submarine-launched ballistic missile (SLBM) that is carried on the US Ohio-class subs as well as the UK Vanguard-class. Each sub carries various silos (16 on the Vanguard, 24 on the Ohio) that launch the missiles while submerged. The missiles the rise out into orbit like a rocket to the moon, at which point the tip of the missile opens and lets out a number of independently-targeted warheads (known as MIRVs) fall back to Earth. There are 8 British-designed MIRVs on each Trident carried on the Vanguard subs (the US Tridents carry up to 12) which means that each Vanguard sub armed with a full complement of 16 Tridents can theoretically destroy 128 targets from practically anywhere in the world. Continue reading