In a situation where North Korea’s nuclear program is motivated by a perceived military threat from the outside, there is a need to put greater focus on security-building in return for denuclearization measures. The topic is the recent military tension in the Korean peninsula from the inter-Korean and regional perspectives and the presentation will focus on the recent development of inter-Korean relations and its impact on the region. In a conclusion, it suggests some ideas to reduce the tension on the Korean peninsula. Reducing tensions will eventually build confidence and allow negotiations in other areas - including denuclearization - to proceed more smoothly. If not complemented by serious long-term efforts at crisis management by engaging each other in dialogue, all parties involved risk the further increase of military tensions on the Korean Peninsula.