The Jefferson Era, War with Tripoli

The First Barbary War (1801-1805), was faught between United States of America and Barbary states during which Thomas jefferson served as the president of the United states.

Explaination:

The First Barbary War (1801-1805), also called as the Tripolitanian War and the Barbary Coast War, in which the United States and Sweden battled against the four North African states referred as the "Barbary States". These were the Sultanate of Morocco, Tripoli, Algiers, and Tunis.

The reason for the U. S. cooperation was the pirates from these States who captured American ships and takes the crews as hostages for money. Demanding the United States to pay money to the Barbary rulers, which was refused by the U. S President Thomas Jefferson.