I remember it well, 14 of us (2 full crews) were called and told we were on alert and not to leave the barracks except to go to the chow hall or squadron and only after getting permission. Two C-5s were placed on alert and loaded with the airbus configuration (270 PAX seats in the cargo compartment), we pre-flighted both aircraft so all we needed to do was get in the seats and run the starting engines checklist for an immediate departure then sealed the airplane. Dover did the same thing and we both kept crews on alert until the crisis ended.
https://www.history.com/topics/middle-east/iran-hostage-crisisIran Hostage Crisis
On November 4, 1979, a group of Iranian students stormed the U.S. Embassy in Tehran, taking more than 60 American hostages. The immediate cause of this action was President Jimmy Carter’s decision to allow Iran’s deposed Shah, a pro-Western autocrat who had been expelled from his country some months before, to come to the United States for cancer treatment. However, the hostage-taking was about more than the Shah’s medical care: it was a dramatic way for the student revolutionaries to declare a break with Iran’s past and an end to American interference in its affairs. It was also a way to raise the intra- and international profile of the revolution’s leader, the anti-American cleric Ayatollah Ruhollah Khomeini. The students set their hostages free on January 21, 1981, 444 days after the crisis began and just hours after President Ronald Reagan delivered his inaugural address. Many historians believe that hostage crisis cost Jimmy Carter a second term as president.
The Iran Hostage Crisis: The Shah and the C.I.A.