Coventry was a top-secret S.H.I.E.L.D. facility in Egypt.
History
In 1942 the Royal Air Force built a base at a classified location in Egypt, naming it Coventry. Over time, the base was used as a covert facility by S.H.I.E.L.D.
The Coventry was believed to be decommissioned in 1948 by the Egyptian Security Forces, but the Joint Task Force determined that it continued to be active for S.H.I.E.L.D. operatives.[1]