[5] After World War I, despite the "self-determination of peoples" idea of the Allied Powers, only one plebiscite was permitted (later known as the Sopron plebiscite) to settle disputed borders on the former territory of the Kingdom of Hungary,[6] settling a smaller territorial dispute between the First Austrian Republic and the Kingdom of Hungary, because some months earlier, the Rongyos Gárda launched a series of attacks to oust the Austrian forces that entered the area.
During the plebiscite in late 1921, the polling stations were supervised by British, French, and Italian army officers of the Allied Powers.
"[8] Hungary, supported by the Axis Powers, was successful temporarily in gaining some regions of the former Kingdom by the First Vienna Award in 1938 (southern Czechoslovakia with mainly Hungarians) and the Second Vienna Award in 1940 (Northern Transylvania with an ethnically mixed population), and through military campaign gained regions of Carpathian Ruthenia in 1939 and (ethnically mixed) Bačka, Baranja, Međimurje, and Prekmurje in 1941 (Hungarian occupation of Yugoslav territories).
Following the close of World War II, the borders of Hungary as defined by the Treaty of Trianon were restored, except for three Hungarian villages that were transferred to Czechoslovakia.
This new centralized rule, however, failed to provide stability, and in the wake of military defeats the Austrian Empire was transformed into Austria-Hungary with the Austro-Hungarian Compromise of 1867, by which Kingdom of Hungary became one of two constituent entities of the new dual monarchy with self-rule in its internal affairs.
Before World War I, only three European countries declared ethnic minority rights, and enacted minority-protecting laws: the first was Hungary (1849 and 1868), the second was Austria (1867), and the third was Belgium (1898).
According to Károly Kocsis and Eszter Kocsis-Hodosi, the ethnic composition (by their native language) in 1910 (note: three-quarters of the Jewish population stated Hungarian as their mother tongue, and the rest, German, in the absence of Yiddish as an option[10]): Trianon thus defined Hungary's new borders in a way that made ethnic Hungarians the overwhelmingly absolute majority in the country.
Several municipalities that had purely ethnic Hungarian population were excluded from post-Trianon Hungary, which had borders designed to cut most economic regions (Szeged, Pécs, Debrecen etc.)
[27] Ferenc Szálasi, leader of Hungary from 16 October 1944 envisioned the creation a "Carpathian-Danubian" federation where nationalism is region based ("connationalism") and other peoples are willing to join independently.
After the war the areas were returned to neighboring countries and Hungary's territory was slightly further reduced by ceding three villages south of Bratislava to Slovakia.
Communist hegemony guaranteed a facade of inter-ethnic peace while failing to secure a lasting accommodation of minority interests in unitary states.
The fall of Communism aroused the expectations of Hungarian minorities in neighboring countries and left Hungary unprepared to deal with the issue.
In Romania, Slovakia, and Yugoslavia (now Serbia), former Communists secured popular legitimacy by accommodating nationalist tendencies that were hostile to minority rights.
[45] Under great pressure from the EU and NATO, Hungary signed a bilateral state treaty with Slovakia on Good Neighborly Relations and Friendly Cooperation in March 1995, aimed at resolving disputes concerning borders and minority rights.
Slovakia accepted the 1201 Recommendation in the treaty, but denounced the concept of collective rights of minorities and political autonomy as "unacceptable and destabilizing".
Slovakia finally ratified the treaty in March 1996 after the government attached a unilateral declaration that the accord would not provide for collective autonomy for Hungarians.
After World War II, a Hungarian Autonomous Region was created in Transylvania, which encompassed most of the land inhabited by the Székelys.
On 16 September 1996, after five years of negotiations, Hungary and Romania also signed a bilateral treaty, which had been stalled over the nature and extent of minority protection that Bucharest should grant to Hungarian citizens.
These concessions were made in large measure because both countries recognized the need to improve good neighborly relations as a prerequisite for NATO membership.
László Brenzovics, the head of KMKSZ filed a lawsuit against the Central Election Commission of Ukraine for refusing to create the so-called Pritysyansky constituency – a separate constituency on the territory of 4 districts of Transcarpathia along the Tisza River, where the ethnic Hungarians are compact, allegedly for the purpose of electing their representative in the Verkhovna Rada.
Preparing for the fact that the court is likely to support the legitimate refusal of the CEC, the Hungarians began to act at the level of the local councils of Transcarpathia.