"North Korea remains Washington's "number one security concern" in Asia, the US Pacific Fleet commander said Wednesday, despite simmering territorial disputes elsewhere in the region. Admiral Harry B. Harris also accused China of "coercion" in its maritime disputes with neighbours. He said an increased deployment of US military assets in the region as part of an Asian "pivot" announced in 2012 would ensure that "we are where it matters and when it matters"." (Quoted from Article).