President Donald Trump stated that more military operations are planned for Iran and the Pentagon stated on March 2 that the United States is prepared to send more troops to fight Iran.
Iran has already launched retaliation strikes against Israel and U.S. military installations in the Persian Gulf.
How big is Iran? Iran is the 17th largest nation in the world by area, just after Sudan and Libya. It is roughly 636,000 square miles in size.
Here's a look at how the United States' military compares with Iran.
More: Who was killed in the Iran attack? A look at Tehran's power structure
