The state of Kansas is suing the U.S. Army in federal court, alleging the Army is trying to prevent the state from continuing to provide cafeteria service at Fort Riley.

The state has received the federal contract worth more than $1 million since 2006.

The Topeka Capital-Journal reports the Kansas Department for Children and Families filed the lawsuit earlier this week. The state alleges the Army is trying to change the process in a way that would prevent Kansas from bidding on the contract.

The Army wants to add the fort’s cafeteria services to a procurement list, which would remove it from public bidding.

A Department of Defense spokesman told the newspaper that the agency does not comment on pending litigation.