**Question 1:** What has the United States formally accused Iran of doing?
**Answer:** The United States has formally accused Iran of supplying short-range ballistic missiles to Russia for use in the war in Ukraine.
**Question 2:** What actions is the United States planning to take in response to Iran's alleged actions?
**Answer:** The United States plans to take measures to punish those involved in the supply of missiles from Iran to Russia.
**Question 3:** What type of missiles is Iran accused of supplying to Russia?
**Answer:** Iran is accused of supplying short-range ballistic missiles to Russia.
**Question 4:** How does the U.S. view the relationship between Iran and Russia in the context of the Ukraine conflict?
**Answer:** The U.S. views the relationship as a collaboration that undermines international efforts to support Ukraine and poses a threat to regional stability.
**Question 5:** What implications could this accusation have for U.S.-Iran relations?
**Answer:** This accusation could further strain U.S.-Iran relations, potentially leading to increased sanctions and diplomatic tensions between the two countries.