Military Exercises and Provocations

US-South Korean Military Exercises

The United States and South Korea conduct some of the largest combined military exercises in the world. Ulchi Freedom Shield (previously Ulchi Freedom Guardian) is a massive computer-simulated war game involving tens of thousands of troops. Other exercises include live-fire drills, amphibious landing rehearsals, and air power demonstrations that regularly deploy strategic assets including B-52 bombers, aircraft carriers, and nuclear-powered submarines to the region.

Washington and Seoul describe these exercises as defensive and necessary to maintain readiness for a North Korean attack. The exercises rehearse specific operational plans — including OPLAN 5015, which reportedly includes preemptive strike options against North Korean leadership and nuclear facilities. From the allied perspective, deterrence requires demonstrating the capability and willingness to respond overwhelmingly to any North Korean aggression.

North Korea views these exercises as rehearsals for invasion and regime change. Pyongyang consistently demands their cancellation as a precondition for negotiations. During the Trump-Kim diplomacy of 2018-2019, the US scaled back exercises as a goodwill gesture — which Trump described as stopping 'war games' — drawing criticism from military planners who worried about degraded readiness.

North Korean Provocations

North Korea maintains its own cycle of provocations, calibrated to maximize pressure without triggering full-scale war. The pattern typically involves missile launches (North Korea fired over 90 ballistic missiles in 2022 alone, a record), nuclear tests (six conducted between 2006 and 2017), artillery exercises near the Northern Limit Line maritime border, and threatening rhetoric from state media.

Two incidents came close to triggering broader conflict. In March 2010, a North Korean submarine torpedoed the South Korean corvette Cheonan, killing 46 sailors. South Korea's restrained response — it did not retaliate militarily — was praised for avoiding escalation but criticized domestically as weakness. In November 2010, North Korea shelled Yeonpyeong Island with approximately 170 artillery rounds, killing two South Korean marines and two civilians. South Korea returned fire but the exchange did not escalate further.

These incidents illustrate the central dilemma of Korean Peninsula security: South Korea must respond firmly enough to deter future provocations but not so forcefully that it triggers a war that would devastate Seoul — a metropolitan area of 26 million people located just 35 miles from the DMZ and within range of thousands of North Korean artillery pieces.

The Deterrence Debate

The fundamental question underlying the exercises-and-provocations cycle is whether deterrence is working. Optimists point out that despite decades of crises, there has been no major war on the Korean Peninsula since 1953. The US-ROK alliance, including the US nuclear umbrella, has successfully deterred a North Korean invasion. The military exercises that Pyongyang denounces are precisely what makes deterrence credible.

Pessimists argue that deterrence is fraying. North Korea's growing nuclear arsenal — potentially capable of striking the US mainland — raises the question of whether Washington would really risk Los Angeles to defend Seoul (the 'decoupling' problem that has plagued extended deterrence debates since the Cold War). South Korea's own debate about acquiring independent nuclear weapons, once taboo, has entered mainstream political discourse, with polls showing majority public support. The stability that deterrence provides may be masking a slow erosion of the conditions that make it work.