The Ju Lang-2 intercontinental missile is the second generation of Chinese submarine-launched ballistic missiles.
It's a closely held secret, and details are sketchy. If it lives up to what public military intelligence says it is, it's a huge get for China, especially with their new sub fleet.
The missile is believed to have a range of 8,000 km, and can carry conventional or nuclear warheads.
It's a two stage missile, and a later version could travel up to 14,000km (8,700 miles).
There have been eleven known tests of the ICBM, and the ability to launch from a submarine expands the range in a massive way.