Which of the following statements if true of the gulf of tonkin affair

It led to increased U.S. involvement in Vietnam.

I just took the test on Apex.

in 550 b.c.e. cyrus the great, the leader of the persians, conquered the medes and united the iranian people under one ruler for the first time. cyrus became the first king of the persian empire and went on to establish one of the largest empires in world.