Question: In which internationally recognised block do both Budapest, the most populous city of Hungary and  Mirosław Hermaszewski, a retired Air Force officer and cosmonaut belong?
Context: The Air Force Reserve Officer Training Corps (AFROTC) is one of the three primary commissioning sources for officers in the United States Air Force, the other two being the United States Air Force Academy (USAFA) and Air Force Officer Training School (OTS).  A subordinate command of the Air University within the Air Education and Training Command (AETC), AFROTC is aligned under the Jeanne M. Holm Center for Officer Accessions and Citizen Development at Maxwell AFB, Alabama.  The Holm Center, formerly known as the Air Force Officer Accession and Training Schools (AFOATS), retains direct responsibility for both AFROTC and OTS. Guion Stewart Bluford Jr., Ph.D. (born November 22, 1942), (Col, USAF, Ret.) , is an American aerospace engineer, retired U.S. Air Force officer and fighter pilot, and former NASA astronaut, who was the first African American in space.  Before becoming an astronaut, he was an officer in the U.S. Air Force, where he remained while assigned to NASA, rising to the rank of Colonel.  He participated in four Space Shuttle flights between 1983 and 1992.  In 1983, as a member of the crew of the Orbiter "Challenger" on the mission STS-8, he became the first African American in space as well as the second person of African ancestry in space, after Cuban cosmonaut Arnaldo Tamayo Méndez. Air Vice-Marshal (Major-General) Michael John O'Brian, (Urdu: مايكل او براءين; born: 5 January 1928 – 10 March 2002), was a retired air force officer and two-star general in the Pakistan Air Force (PAF) who served as the Commandant of National Defence University, Islamabad.  O'Brian was the first Pakistan Air Force general to serve as the Commandant of the university.  He also served as the Deputy Chief of Air Staff, and was one of the distinguished Christian pilots who participated in Indo-Pakistan wars of 1947, 1965, and the 1971. Terry Lee (Walter) Gabreski (born 1952) was the second woman to hold the rank of Lieutenant General in the United States Air Force (USAF).  She was the Vice Commander, Air Force Materiel Command, Wright-Patterson Air Force Base, Ohio, which conducts research, development, test and evaluation, and provides acquisition management and logistics support necessary to keep Air Force weapon systems ready for war.  She is the daughter of retired Air Force Brigadier General Alonzo Walter and the daughter-in-law of World War II and Korean War fighter ace Colonel Gabby Gabreski.  She was the U.S. Air Force's highest-ranking active duty woman until retiring on 1 January 2010, succeeded by Lt. Gen. Janet C. Wolfenbarger. Hansford Tillman (HT) Johnson (born January 3, 1936) is a retired four-star general in the U.S. Air Force who served as the Acting United States Secretary of the Navy, overseeing the United States Navy and Marine Corps (Acting) in the administration of U.S. President George W. Bush.  He is the only retired Air Force officer to ever hold that position.  Prior to that he was Assistant Secretary of the Navy (Installation and Environment).  He currently works at the Institute for Defense Analyses. Air Chief Marshal Kaset Rojananil (Thai: เกษตร โรจนนิล , rtgs: Kaset Rochananin ; born 27 August 1933) is a Thai retired air force officer.  He was the Commander of the Royal Thai Air Force from 1989 to 1992 and briefly held Thailand's most senior military post, the Supreme Commander of the Royal Thai Armed Forces from April to July 1992. Mirosław Hermaszewski (born September 15, 1941) is a retired Polish Air Force officer and cosmonaut.  He became the first (and to this day remains the only) Polish national in space, when he flew aboard the Soviet Soyuz 30 spacecraft in 1978. Mark Anthony Welsh III (born January 26, 1953) is Dean of the Bush School of Government and Public Service, a graduate college of Texas A&M University, and a retired United States Air Force officer.  His last military assignment before retiring from the Air Force was as the 20th Chief of Staff of the United States Air Force.  He was born in San Antonio, Texas, and entered the United States Air Force in June 1976 as a graduate of the US Air Force Academy.  He retired after over 40 years of service on July 1, 2016, when he was relieved by General David L. Goldfein. Budapest (] ) is the capital and by far the most populous city of Hungary and one of the largest cities in the European Union.  With an estimated 2016 population of 1,759,407 distributed over a land area of about 525 km2 , Budapest is also one of the most densely populated major cities in the EU.  Budapest is both a city and county, and forms the centre of the Budapest metropolitan area, which has an area of 7,626 km2 and a population of 3,303,786, comprising 33 percent of the population of Hungary.  The Budapest metropolitan area had a GDP of $141.0 billion (€129.4 billion) in 2016, accounting for 49.6 percent of the GDP of Hungary.  GDP per capita in the city is $64,283, which means 148% of the EU average measured on purchasing power parity.  Thereby the city is among the top 100 GDP performing cities in the world Lieutenant General George Peach Taylor Jr.  USAF (Ret.)  (born 1953) was the 18th Surgeon General of the United States Air Force, Headquarters U.S. Air Force, Washington, D.C. General Taylor served as the senior Air Force officer responsible for comprehensive management of the Air Force Medical Service.  In this capacity, he advises the Secretary of the Air Force and Air Force Chief of Staff, as well as the Assistant Secretary of Defense for Health Affairs, on matters pertaining to the medical aspects of the air expeditionary force and the health care of 2.6 million Air Force beneficiaries.  The Surgeon General has authority to commit resources for the Air Force Medical Service, to make decisions affecting the delivery of medical services, and to develop plans, programs and procedures to support worldwide medical service missions.  The Surgeon General exercises direction, guidance and technical management of more than 42,000 people assigned to 74 medical treatment facilities worldwide.  From September 7, 2010 - December 22, 2010 he served as the acting Assistant Secretary of Defense for Health Affairs
Answer: EU