A popular Korean saying right after World War II in 1945, as shown below, attests to the Korean people's generally distrustful sentiment toward outside powers. This sentiment of realism also seems to be reflected in both North and South Korea today.
The United States - ROK Mutual Defense Treaty, commemorating its half-century mark on October 1, 2003, was hailed as one of the successful, long-standing, military alliances that the U.S. had entered into with its allies in the post-World War II era. On the occasion of the 50th anniversary of the Korean War, there was a wide-ranging commemorative community program and activities throughout the United States, to honor Korean War veterans and their family members.
The security dynamics on the Korean peninsula are changing with the uncertain future associated with the North Korean claim that it now has nuclear weapons and an active program of building a "powerful deterrence force". This dramatic reversal of Pyongyang's nuclear stance, which is more than rhetorical but action-driven, followed its announced withdrawal from the Nuclear Nonproliferation Treaty early in 2003 and its nullification of the 1992 North-South Korean non-nuclear agreement.