The action taken by President Carter in response to the Iran hostage crisis was that he ordered a military rescue which failed.
Jimmy Carter became the 39th president of the country US from the year 1977 to the year 1981.
President Carter had launched a military operation to free the 52 American hostages from the US embassy in Tehran that was abducted by the young revolutionaries. But the military operation resulted in a failure.
Therefore, President Carter has ordered a military rescue operation in the Iran hostage crisis.
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