Space Force Joins US-ROK Joint Drill for the First Time; B-1 Participates As Well Sept. 1, 2023 | By Unshin Lee Harpley U.S. Air Force B-1 bombers flew across the skies of South Korea this week as part of an annual joint military drill between the two nations known as 'Ulchi Freedom Shield.' The Space Force also joined in on the exercise for the first time since ...