paragraph_text: Phoenix Sky Harbor International Airport (IATA: PHX, ICAO: KPHX, FAA LID: PHX) is a civil - military public airport 3 miles (2.6 nmi; 4.8 km) southeast of downtown Phoenix, in Maricopa County, Arizona, United States. It is Arizona's largest and busiest airport, and among the largest commercial airports in the United States.

paragraph_text: Florida Military School, Florida Military School and College, Florida Military High School, and FMS all refer to the school located in DeLand, Florida during the years 1956 to 1971. It was located just south of DeLand Airport at Sky Harbor Station, DeLand, Florida. The Florida Military School Association, Inc. (FMSA) was founded on 2003 April 10. The first annual meeting of FMSA was held in DeLand 2003 October 25.

paragraph_text: Malta International Airport (Maltese: Ajruport Internazzjonali ta 'Malta, IATA: MLA, ICAO: LMML) is the only airport in Malta and it serves the whole of the Maltese Islands. It is located on island of Malta, between Luqa and Gudja, and occupies the location of the former RAF Luqa. It was completely refurbished, becoming fully operational on 25 March 1992. It is still referred to by locals as Luqa Airport, and sometimes as Valletta Airport internationally, as it is located 5 km (3.1 mi) southwest of the Maltese capital Valletta. The airport serves as the main hub for Air Malta and a base for Ryanair. It is also home to the Area Control Center and hosts the annual Malta Airshow, visited by military and civil aircraft from various countries. The airport is operated by Malta International Airport plc.

paragraph_text: Louisville International Airport (IATA: SDF, ICAO: KSDF, FAA LID: SDF) is a public and military use public airport centrally located in the city of Louisville in Jefferson County, Kentucky, United States. The airport is situated on approximately 1,500 acres (6.1 km) and has three runways. Its IATA airport code, SDF, is based on the airport's former name, Standiford Field. Although it currently does not have regularly - scheduled international passenger flights, it is a port of entry, as it handles numerous international cargo flights.

paragraph_text: Bahías de Huatulco International Airport () is an international airport located at Huatulco, in the state of Oaxaca on Mexico. The airport handles national and international air traffic for the southern and southeastern Pacific coast of Oaxaca state.

paragraph_text: Yakataga Airport is a public use airport serving Yakataga (also known as Cape Yakataga) in the U.S. state of Alaska. It is owned by Federal Aviation Administration and lies in the western section of Yakutat Borough.

paragraph_text: A presidential system is a democratic and republican system of government where a head of government leads an executive branch that is separate from the legislative branch. This head of government is in most cases also the head of state, which is called president.

paragraph_text: The Eritrean Air Force (ERAF) is the official aerial warfare service branch of the Eritrean Defence Forces and is one of the three official uniformed military branches of the State of Eritrea.

paragraph_text: The Alaska Purchase (Russian: Продажа Аляски, tr. Prodazha Alyaski) was the United States' acquisition of Alaska from the Russian Empire on March 30, 1867, by a treaty ratified by the United States Senate, and signed by president Andrew Johnson.

paragraph_text: The Boeing C - 32 is a military passenger transportation version of the Boeing 757 for the United States Air Force. The C - 32 provides transportation for United States leaders to locations around the world. The primary users are the Vice President of the United States, using the distinctive call sign ``Air Force Two '', the First Lady and the Secretary of State. On rare occasions, other members of the U.S. Cabinet and Congressional leaders have been authorized to fly aboard the C - 32 for various missions. The C - 32, since its debut, has also served as Air Force One in place of the larger VC - 25A to airports that can not support the Boeing 747 - based jumbo jet.

paragraph_text: Schaumburg Regional Airport is a public use airport located northwest of Chicago, in the village of Schaumburg, in Cook and DuPage counties, Illinois, United States. The airport is owned by the Village of Schaumburg.

paragraph_text: Lafayette Curry Baker (October 13, 1826 – July 3, 1868) was a United States investigator and spy, serving the Union Army, during the American Civil War and under Presidents Abraham Lincoln and Andrew Johnson.

paragraph_text: Rabah Bitat Airport , formerly known as Les Salines Airport, and popularly as El Mellah Airport is an international airport located south of Annaba, a city in Algeria. It is named after Rabah Bitat, a president of Algeria (1978-1979).

paragraph_text: Phillips Flying Ranch Airport is a public airport located fifteen miles (24.1 km) southeast of the central business district (CBD) of Rockwall, in Rockwall County, Texas, United States. The airport itself is located in Hunt County

paragraph_text: Murtala Muhammed International Airport (MMIA) (IATA: LOS, ICAO: DNMM) is an international airport located in Ikeja, Lagos State, Nigeria, and is the major airport serving the entire state. The airport was initially built during World War II and is named after Murtala Muhammed, the 4th military ruler of Nigeria.

paragraph_text: The Vice President of the United States (informally referred to as VPOTUS, or Veep) is a constitutional officer in the legislative branch of the federal government of the United States as the President of the Senate under Article I, Section 3, Clause 4, of the United States Constitution, as well as the second highest executive branch officer, after the President of the United States. In accordance with the 25th Amendment, he is the highest - ranking official in the presidential line of succession, and is a statutory member of the National Security Council under the National Security Act of 1947.

paragraph_text: Platinum Airport is a state-owned public-use airport located in Platinum, in the Bethel Census Area of the U.S. state of Alaska.

paragraph_text: General Justo José de Urquiza Airport () is located on the southeast side of Paraná, a city in the Entre Ríos Province of Argentina. The airport covers an area of and is operated by Aeropuertos Argentina 2000. The airport is named for Justo José de Urquiza, president of the Argentine Confederation from 1854 to 1860.

paragraph_text: Smolensk North Airport (Russian военный аэродром "Смоленск-Северный", "Smolensk North Military Aerodrome") is a decommissioned military airbase in Smolensk Oblast, Russia, located 4 km north of the city of Smolensk. It is now used as Smolensk's sole airport for civil and military flights. It has a remote revetment area with 8 pads and a Yakovlev factory at the southeast side of the airfield, the Smolensk Aviation Plant.

paragraph_text: Belo Horizonte - Tancredo Neves/Confins International Airport , formerly called Confins International Airport is the primary international airport serving Belo Horizonte. Since 2 September 1986 the airport is named after Tancredo de Almeida Neves (1910–1985), President-elect of Brazil. It is located in the municipality of Confins, in the Minas Gerais. It is operated by BH Airport S.A.

Question: What military branch did the president who purchased the state Yakataga Airport is located in serve?
Answer: Union Army