Final answer:
On April 25, 1980, a failed rescue attempt known as Operation Eagle Claw took place to rescue the American hostages held in the US embassy in Tehran. The mission encountered problems, resulting in its failure and the loss of eight American servicemen's lives.
Step-by-step explanation:
On April 25, 1980, a failed rescue attempt took place in an effort to rescue the American hostages held at the US embassy in Tehran, Iran. The mission, known as Operation Eagle Claw, was a covert operation by the US military to recover the hostages. However, the operation encountered several problems, including mechanical failures, a sandstorm, and a collision between two aircraft, resulting in the mission being aborted and eight American servicemen losing their lives.