The Ohio–Hungary National Guard Partnership is one of 25 European partnerships that make-up the U.S. European Command State Partnership Program and one of 88 worldwide partnerships that make up the National Guard State Partnership Program. The country of Hungary signed a bilateral affairs agreement with the U.S. Department of Defense and the state of Ohio in 1993 establishing the Ohio-Hungary State Partnership program. There is a large population of Hungarians throughout Ohio, especially in Columbus, Cleveland, Dayton and Toledo. Since then, Ohio and Hungary have conducted over 150 SPP events in a host of security cooperation activities ranging from bilateral familiarizations, small unit exchanges, exercises, senior military and civic leader visits to deployments of Operational Mentoring and Liaison Teams (OMLT) in support of Operation Enduring Freedom.

The United States European Command State Partnership Program, according to its own mission, is a National Guard program that "links U.S. states with designated partner countries to ... support the command’s security cooperation objectives." Currently, 22 Partnerships exist "with former Soviet, Yugoslav and Warsaw Pact countries in the EUCOM Area of Responsibility." Becoming independent on the dissolution of the Soviet Union on December 26, 1991, these countries shortly requested the advice and assistance of the United States in creating new self-defense forces.