The Embargo Act of 1807, which banned trade with , was a great failure. a
Britain
b
France
c
Britain and France
d
all countries

The Embargo Act of 1807 was an attempt by President Thomas Jefferson and the U.S. Congress to prohibit American ships from trading in foreign ports. It was intended to punish Britain and France for interfering with American trade while the two major European powers were at war with each other.

I hope this helped if not im sorry

Generally speaking, a warlord is "a military leader who rules a small area by force," although it should be noted that this usually comes with the leader ruling tyrannically and with a great deal of force.