I find it hard to believe that China's Xia class SSBNs didn't conduct deterrence patrols before the Jin class came online.
Diplomat
China Deploys First Nuclear Deterrence Patrol
China reportedly deployed its first-ever submarine nuclear deterrence patrol. What does it mean?
By Benjamin David Baker
December 19, 2015
During the Cold War, nuclear deterrence was ultimately perceived to be an effective way of keeping tensions between the Warsaw Pact and NATO from exploding into war. Although much of the rhetoric surrounding Mutually Assured Destruction (MAD) disappeared along with the Soviet Union, nuclear states still keep sizable arsenals to dissuade others from attacking them.
A central part of having a credible nuclear response option is to develop a so-called �nuclear triad.� This consists of having ground-, air- and sea-based nuclear capabilities, in order to retain a �second strike� capability in case an opponent launches its nukes first. Submarines and small, mobile land-based launch platforms armed with nuclear ballistic and so-called Multiple Independently Targetable Reentry Vehicles (MIRVs) are crucial to a second strike capability, since they are difficult to detect and target.
China has recently achieved some important milestones with regards to both these capabilities. According to IHS Jane�s, U.S. military officials confirmed that the People�s Liberation Army Navy (PLAN) has deployed a Type-094 Jin-class nuclear-powered ballistic submarine on a nuclear deterrence patrol. If true, this represents the first time that China has deployed a sub on this kind of mission.
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