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?
Budapest: Budapest (] ) is the capital and by far the most populous city of Hungary and one of the largest cities in the European Union. Budapest:  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:  GDP per capita in the city is $64,283, which means 148% of the EU average measured on purchasing power parity.
i don't know