Question: Memphis International Airport and Norfolk International Airport, are located in which country?

Context paragraphs:
Virginia State Route 165: State Route 165 (SR 165) is a primary state highway in the U.S. state of Virginia.  The state highway runs 39.75 mi from U.S. Route 17 Business (US 17 Business) in Chesapeake north to SR 337 in Norfolk.  SR 165 is a C-shaped route that connects Chesapeake and Norfolk in the Hampton Roads metropolitan area indirectly via Virginia Beach.  The highway's east–west segment connects the Chesapeake communities of Deep Creek and Great Bridge with the Princess Anne part of Virginia Beach.  SR 165's northwest–southeast portion connects the Princess Anne area with Virginia Beach's Salem and Kempsville communities and with Norfolk.  Within Norfolk, the state highway parallels Interstate 64 (I-64) while passing through the eastern and northern areas of the city near Norfolk International Airport and Naval Station Norfolk.  Much of SR 165 is a multi-lane divided highway, but there are significant two-lane stretches in all three of the independent cities the highway serves.

FedEx Express Flight 1406: FedEx Express Flight 1406 was a cargo flight from Memphis International Airport, Memphis, Tennessee, to Logan International Airport in Boston, Massachusetts, when it suffered a cargo fire in-flight over New York.  The three crew members on board successfully made an emergency landing at Stewart International Airport, New Windsor.  After the evacuation, the DC-10 was consumed by fire.  After extensive investigation, the National Transportation Safety Board was unable to determine what caused the fire.  Nevertheless, the Federal Aviation Administration made recommendations to prevent similar incidents from occurring in the future.

1990 Wayne County Airport runway collision: The Wayne County Airport runway collision involved the collision of two Northwest Airlines planes in dense fog at Detroit Metropolitan Wayne County Airport on December 3, 1990.  It occurred when Flight 1482, a scheduled Douglas DC-9-14 operating from Detroit to Pittsburgh International Airport, taxied onto an active runway by mistake in dense fog and was hit by a departing Boeing 727 operating as Flight 299 to Memphis International Airport.  One crew and seven occupants of the DC-9 were killed.

Newport News/Williamsburg International Airport: Newport News/Williamsburg International Airport (IATA: PHF, ICAO: KPHF, FAA LID: PHF) is an airport located in Newport News, Virginia, and serves the Hampton Roads metropolitan area along with Norfolk International Airport in Norfolk.  The airport is owned and operated by the Peninsula Airport Commission, which is a political subdivision of the Commonwealth of Virginia.

FedEx Express Flight 647: FedEx Express (FedEx) Flight 647 was a flight between Metropolitan Oakland International Airport (OAK), Oakland, California and Memphis International Airport (MEM), Memphis, Tennessee that crashed during landing on December 18, 2003.

Norfolk International Airport: Norfolk International Airport (IATA: ORF, ICAO: KORF, FAA LID: ORF) is a public use airport located three nautical miles (6 km) northeast of the central business district of Norfolk, an independent city in the U.S. state of Virginia.  It is owned by the city of Norfolk and operated by the Norfolk Airport Authority: a bureau under the municipal government.  The airport serves the entire Hampton Roads metropolitan area of southeast Virginia (along with Newport News/Williamsburg International Airport in Newport News) as well as northeast North Carolina.

Indianapolis International Airport: Indianapolis International Airport (IATA: IND, ICAO: KIND, FAA LID: IND) is a public airport seven miles (11 km) southwest of downtown Indianapolis, in Marion County, Indiana, United States.  It is owned and operated by the Indianapolis Airport Authority.  The airport is the largest in Indiana, occupying about 7700 acre in Wayne and Decatur townships of Marion County, all within the city of Indianapolis.  It is near interstate highways I-65, I-69, I-70 and I-74, all of which connect to the city's I-465 beltway.  The passenger terminal was the first designed and built in the United States after the September 11, 2001 attacks.  The airport is also home to a FedEx Express hub, the company's second-largest after the SuperHub at Memphis International Airport.  Opened in 1988, the hub has been expanded three times.

Memphis International Airport: Memphis International Airport (IATA: MEM, ICAO: KMEM, FAA LID: MEM) is a civil-military airport seven miles (11.2 km) southeast of downtown Memphis in Shelby County, Tennessee, United States.

Fred Heutte: Frederic Heutte was a leading writer, gardener and horticulturist in Norfolk, Virginia.  He became head of Norfolk's parks in 1936, and became a leading advocate for the beautification of the Tidewater Virginia city through its landscaping.  In 1936 Heutte founded and was director of the Norfolk Botanical Garden until he retired in 1966.  The garden has the distinction of being the only botanical garden that surrounds a municipal airport.  Later, Norfolk International Airport became a national model for reconciling the landscape and commercial aviation .

FedEx Express Flight 630: FedEx Flight 630 was a regular scheduled cargo flight from Seattle-Tacoma International Airport to Memphis International Airport, Memphis, Tennessee.  On July 28, 2006, the McDonnell Douglas MD-10-10F

Supporting paragraphs: Memphis International Airport Norfolk International Airport
Answer: United States