CIMSEC – In support of developing a new Navy Deterrence Concept, the U.S. Navy needs to develop and train to new tactics and techniques in how to operate just below the threshold of armed conflict. The PRC and PLAN are very comfortable in this realm under the doctrine of their “Three Warfares” and have only grown bolder in their day-to-day operations in the Pacific. The recent collision between PLAN and CCG vessels provided the world a reminder of how dynamic and volatile the situation has become, but it will not dissuade the PLAN from further attempts to exert sea control and sea denial through non-lethal means.