Michigan made a significant contribution to the Union in the American Civil War and sent more than forty regiments of volunteers to the federal armies.

By land Maison sent two infantry regiments and the 3rd light cavalry regiment.

It required him to send three regiments on diverging paths to three different objectives.

Only lightly engaged, Burnham was able to send two regiments to help repel a Confederate attack on the left flank.

So, naturally, you decided to send two full cavalry regiments charging off on a wild goose chase.

Kilpatrick sent two regiments to help extend the Federal line, and Gregg slowly advanced.

Missouri was asked to send four regiments.

King Pindale sent five regiments to the front in October 1651.

Stoneman also sent two regiments of cavalry to destroy the lead mines and smelting facilities that were about ten miles (16 km) from Wytheville.

In response to the deteriorating situation, Lord Hillsborough sent four regiments of British soldiers to Boston.