In order to control the nuclear program of iran, many countries put economic restrictions between them and iran. what is this strategy called? its is a word question

In order to control the nuclear program of Iran, many countries put economic restrictions between them and Iran. This strategy is called sanctions.

Explanation:

In order to abide by the international policies or peace-keeping, certain countries have been taking restrictive actions against Iran by imposing sanctions on it.

These actions come in response to Iran's continued attempts to develop nuclear weapons despite repeated warnings from major world countries to cease it.

Many countries including the United States have applied sanctions that restrict their governments and citizens and the governments of many other countries from maintaining commercial relations with Iran.