People gathered by the hundreds in cities across the U.S. on Saturday as part of a nationwide day of protest to coincide with a military parade in Washington celebrating 250 years of the United States Army.

Organizers across the country named the mobilization “No Kings.” The rallies were organized in opposition to a military parade in Washington, D.C. on the president’s 79th birthday Saturday. The parade is happening on Flag Day, which also marks the U.S. Army’s 250th anniversary this year.