How many times do you have to be encouraged to acquire knowledge of something before you post about it?
In November 1979, Iran’s revolutionary government took 52 Americans hostages at the U.S. embassy, and the U.S. severed diplomatic relations with Tehran. In retaliation, Washington froze $12 billion in Iranian assets held on our shores. The hostage crisis was resolved in 1981 at a conference in Algiers, and the U.S. returned $3 billion to Iran, with more funds going either to pay creditors, or into escrow. The two nations also established a tribunal in the Hague called the Iran United States Claims Tribunal to settle claims both leveled by each government against the other, U.S. citizens versus Iran, and vice versa.
The major issue between the two governments was a $400 million payment for military equipment made by the government of the Shah of Iran, prior to the 1979 uprising that topped him. The U.S. banned delivery of the jets and other weapons amid the hostage crisis, but froze the $400 million advance payment.
https://www.google.com/amp/amp.timeinc.net/fortune/2016/08/05/money-america-iran
The money was Iran’s.