Staff Sgt. Hwang Song Hun works with Staff Sgts. Muneerah Williams and Michael Rowe to prepare for Exercise Key Resolve Feb. 24, 2011, at Osan Air Base, South Korea. Sergeant Hwang is a South Korea air simulation specialist, and Sergeant Williams and Rowe are air operators assigned to Kunsan Air Base, South Korea. Key Resolve exercise begins at Osan AB by Tech. Sgt. Matthew McGovern 7th Air Force Public Affairs 3/1/2011 - OSAN AIR BASE, South Korea (AFNS) -- Service members from the U.S. and South Korea kicked off Exercise Key Resolve Feb. 28 here. Key Resolve is a combined exercise that involves more than 2,300 U.S. forces and nearly 10,000 South Korean forces and is geared towards maintaining the readiness of the Combined Forces Command staff and components. The primary focus of Key Resolve will be to exercise alliance crisis management, defensive and stability operations. "Our job is to make it as realistic as possible, and we do that with a robust scenario, role players, and an array of models and simulations to feed real-world command and control systems," said Col. Patrick Matthews, the 7th Air Force director of programs plans and analyses.  South Korea and U.S. forces use teamwork and technology to work through the crises and ultimately strengthen the alliance, Colonel Matthews said. "We will demonstrate we can operate as a combined team to defend the country," he said. Colonel Matthews stressed that the relationship between the South Korea and U.S. forces is deeply rooted in history. "Our relationship with Korea is not a coalition, it's a combined alliance," he said. "We're bound to help defend this country, and we've been doing it for 60 years." About 1,350 Airmen are participating in the 10-day exercise and will underline the total-force concept with active-duty, guard and Reserve Airmen. "Every time we do one of these exercises, the main goal is to strengthen the alliance," Colonel Matthews said. "We work well together, and we find out more about each other to help us to work better in the long run." Staff Sgt. Hwang Song Hun, a South Korea forces air simulation specialist, said he is ready to continue the tradition of the alliance at his first Key Resolve exercise. "I'm looking forward to working with our U.S. counterparts, and I'm curious to learn how they do business," Sergeant Hwang said. Retired Brig. Gen. Barry Barksdale, the Korean Air Simulation Center senior air controller, has coordinated 12 Key Resolve exercises and can attest to the cohesiveness of these exercises, as well as the improvement of components. "There is a night-and-day difference from when we started this exercise," he said. "Technology is much better, but what sets this exercise apart from others, is the meshing of incredible technology with great people."