Answer:
In 1779, American colonists attacked the city of Savannah in an attempt to regain control of the city, because controlling the major port city would prevent Great Britain from receiving supplies it needed for its military.
Explanation:
Savannah is a coastal city located in the center-east of the state of Georgia, being during the Revolutionary War the main commercial port of the British forces in North America. Therefore, it was essential for the loyalist forces to keep it protected, while for the patriots it was necessary to take it to remove a source of supplies from the British.
Finally, the patriotic siege was defeated by the British forces, which maintained control of the port of Savannah until the end of the war in 1782.