In 1977, Major Ehsan was posted with the Pakistan Armed Forces-Middle East Command where he first served as an instructor to the Iranian Air Force as an exchange officer until 1980. However, Maj. Ehsan left his instructing assignment Iranian IAF before the start of the Iran–Iraq War, and was posted with a command deputation to the Royal Saudi Air Defense which he served until 1983–84. In 1986, Ehsan went to the United States where he attended the United States Army's Logistics Management College in Fort Lee in Virginia and graduated from there in 1989.