Oklahoma's 45th Infantry Brigade is now in Ukraine to help train Ukrainian soldiers.
Other NATO allies, such as Poland, England, Canada, and Lithuania, are involved in this is a multinational training mission. Russia remains a threat to Ukraine because of its support for rebels in Eastern Ukraine.
Officially, the mission is to make the Ukrainian army "NATO inter-operable" by 2020. This is a yearlong mission for the 45th. Several soldiers based out of Stillwater are expected to be home in July or August.