In his capacity as a Lieutenant colonel and, later, a full Colonel in the South Korean army, Chun In-bum designed/managed and controlled the Ulchi Focus Lens Exercise for three years from 1997 to 1999. As a general in the ROK JCS staff and the ROKUS Combined Forces Command staff he participated in more than a dozen “War games.” As the Special forces commander and Deputy commander for First ROK Army, he participated in numerous more such exercises to include UFGs and Foal Eagle.”

Following the 12 June 2018 United States-North Korea summit, U.S. President Donald J. Trump announced that