Hungary is a landlocked country in Central Europe.
Edwin Jarvis' Dishonorable Discharge
Edwin Jarvis, under service of a British Army General, traveled to Budapest and met Ana, the girl who would become his wife, while she worked in a hotel tailor shop. Ana sold him a beautiful tie, and Jarvis quickly fell in love with her.
As World War II began, Ana's safety was endangered given she was Jewish, and Jarvis asked the general to use one of the several letters of transit he carried in his safe to ensure her safety, but he refused to sign. Jarvis had to forge the general's signature, for which he was arrested in London and dishonorably discharged from the Army.
Nick Fury, a member of the CIA, and his direct subordinate Escobar traveled to the city of Budapest in Hungary during the last years of the Cold War, in a mission to retrieve a case containing full dossiers of at least twelve undercover CIA operatives in Soviet territories.
Fury and Escobar attended a nightclub, where Fury interrogated a man to know the whereabouts of the dossiers by the time Escobar finished his drink. While they were exiting the club, a man named Vinorovsky threatened Fury, and Escobar witnessed how Fury disabled him with a hit to the throat.
Fury's status as a wanted man prompted Escobar to ask about the goal of the mission, as he could end up completing it alone, and Fury informed him of the nature of the dossiers, with Escobar noting its value to the Soviet government.
Arriving at the direction Fury obtained, Escobar went to find the briefcase while Fury fought against its owner, a man named Verliecki. Fury defeated Verliecki, but Escobar betrayed him, holding him at gunpoint in order to sell the case to the Soviets. Fury seized an opportunity as Escobar was explaining his plans for the money, to catch him off-guard. They both struggled, and Escobar was able to hold Fury at gunpoint again, only to be knocked out by Verliecki, who turned out to be one of Fury's contacts.
It turned out that the whole mission was orchestrated to discover Escobar's true affiliation and turn him out as a mole, and the case was actually filled with cigars. Escobar was given a CIA identification with his photograph, but Nick Fury's name written on it, to be framed of Fury's previous actions in Soviet territory.
The Soviet authorities, attracted by the gunshots, found Escobar unconscious and tied to a chair by Verliecki, while Fury contacted Dum Dum Dugan and informed him about the outcome of the mission. Fury asked Dugan to wait for him to begin the celebration, as he was going to bring the cigars.
S.H.I.E.L.D. agents Natasha Romanoff and Clint Barton were sent on a mission to Budapest, Hungary. During the mission, they were involved in a situation that would later be remembered by Romanoff during the Battle of New York, as one of the fights she and Barton had against one of the Chitauri groups reminded her of Budapest, something Barton disagreed.
Isabelle Hartley, Lance Hunter and Idaho worked together in a mission in Budapest, where Idaho cooked something awful. He excused himself saying he did not have the right tools or raw materials to make it work. Besides its awful taste, the meal broke one of Hunter's teeth.