During the war, the Hungarian Red Army fought separate battles against troops from Czechoslovakia and Romania, and France was also highly involved[1] diplomatically in the conflicts, too.

Appealing to Hungarians with promises of regaining the land lost to neighbouring countries within a week of his rise to power, communist revolutioner Béla Kun declared war upon Czechoslovakia.

The Hungarian army moved its 1st and 5th artillery divisions (40 battalions) to Upper Hungary (partially modern day Slovakia).

Despite the communists' promises on the restoration of the former borders of Hungary, they declared the establishment of the independent Slovak Soviet Republic in Prešov on 16 June 1919.

After four hours of fighting, his troops occupied the dominant dimensions and began attacking the key positions of the Hungarian defense.

The whole central flow of Hron (Garam) was given to the Czechoslovak control, and the Hungarian command no longer had advances to break the breakthrough.