Question: Are both airports, Eastern Wv Regional Airport and Cortland County Airport, located in the same country?
Sentence (from "Eastern WV Regional Airport"): The Eastern West Virginia Regional Airport, also known as Shepherd Field, is a civilian- owned, public use airport located four nautical miles( 5 mi, 7 km) south of the central business district of Martinsburg, a city in Berkeley County, West Virginia, United States.
Relevant evidence: Yes