The take-over of the american embassy in in november 1979 confirmed the perceptions in the minds of many that the united states had declined as a world power.

When i clicked on the right answer it told me this because im in u.s history to  the take over of the american embassy in  iran   in november 1979  confirmed   the perceptions in the minds of many that the united states had declined as a world power. many americans were very wary of events in  iran , especially so soon after the end of the  vietnam war   and the government's response to it. so the answer is iran.

He did that to war with groups