are expected to use wartime tunnels or various infiltration means such as submarines, air-cushion vehicles (ACVs), AN-2 aircraft, and helicopters to infiltrate the forward and rear areas and conduct hybrid operations in the form of striking major units and facilities, assassinating key figures, and disturbing the rear area. The Defense Reform Base Plan was originally presented by President Roh Moo-hyun in December 2006, but after years of evolution, and political and military pushback the reform was launched by President Moon Jae-in’s administration. The ROK Armed Forces will firmly implement Defense Reform 2.0 to proactively respond to changes in the security environment and omnidirectional security threats, as well as support peace and prosperity on the Korean Peninsula based on strength. To this end, the ROK Armed Forces will work toward "steadfast national defense. On 27 December 2022 North Korea sent five drones over the border. One reaching Seoul, all five returned to the North. Despite a five hour chase involving fighter jets and attack helicopters. With some 100 rounds being fired. A KAI KT-1 Woongbi crashed although both crew survived. The Joint Chiefs of Staff (South Korea) released a statement in which it acknowledges it can stop attack drones. However its ability to stop smaller spy drones is “limited”. A senior official, Kang Shin-chul, said: "Our military's lack of preparedness has caused a lot of concern to the people…actively employ detection devices to spot the enemy's drone from an early stage and aggressively deploy strike assets". The South Korean President Yoon Suk-yeol has indicated that South Korea will invest in stealthy drones that could penetrate North Korea. With the creation of a new military unit. The South Korean Defence Ministry announced a new series of anti-drone measures. Spending some 560 billion won over the next five years. The money will go towards four new initiatives. One is an airborne laser that will be used to destroy lager drones whilst a jammer would be used on smaller drones. A new counter drone unit, made up of two squadrons, would also be created. The laser is already in the test process and is expected to become operational in 2027. The jamming system has been described as "soft kill". Further work will be done on stealth jets and anti-rocket artillery systems. The total amount of the spending over the next five years is 331.4 trillion. The previous Defence budget for the last financial year