Foal Eagle () is an annual combined Field Training Exercise (FTX) conducted between the Republic of Korea (ROK) and United States armed forces under the auspices of Combined Forces Command (CFC) within the Korean Theater of Operations (KTO). It is one of the largest military exercises conducted annually in the world. While defensive in nature and conducted primarily as a rear area security and stability training exercise, Foal Eagle has been a source of friction with the government of Democratic People's Republic of Korea (DPRK) and domestic ROK critics.