A-10 Thunderbolt IIs from both Selfridge Air National Guard Base, Michigan and Davis-Monthan Air Force Base, Arizona and C-146A Wolfhounds from Hurlburt Field, Florida participated in a training event where they landing and take off from Michigan Highway 32. The highway landings are a part of Exercise Northern Strike 21-2 and marked the first time in U.S. history that a modern military aircraft landed on a U.S. public highway designed only for automobiles.