U. S. Colonel George Custer and all of his men were killed by Native Americans in
20 minutes during
battles in the West

If you're looking for which battle, it is the Battle of the Little Bighorn.

the right answer is the third one: turnpikes went short distances to connect markets. turnpikes, also known as toll roads, were very important for trade and transportation (of people, goods and products) in the 19th century, coinciding with the expansion towards the west. they contributed significantly to the economic development of the united states.