The U.S. has warned Iran on it will not tolerate the Islamic Republic's threat to shut down the Strait of Hormuz, located between the Gulf of Oman and the Persian Gulf.
"The U.S. Navy, along with our coalition and regional partners, operates under international maritime conventions to maintain a constant state of high vigilance in order to ensure the continued, safe flow of maritime traffic in waterways critical to global commerce," Navy 5th Fleet in Bahrain spokeswoman Cmdr. Amy Derrick Frost told reporters Wednesday.
Iran has threatened to cut the world's oil supply if the West imposes more sanctions.
On Tuesday, Iranian Vice President Mohammed Reza Rahimi said, "not one drop of oil will pass through the Strait of Hormuz" if sanctions are imposed.
Rahimi said giving its enemies a "strong lesson" is the only way they'll "abandon their plots."
The sanctions are in response to Iran's growing nuclear weapons program.
Iran's navy chief appeared on state television Wednesday, telling the country that closing the Strait of Hormuz will be "easier than drinking a glass of water."
"If the Iranians actually attempted to shut down the Straits of Hormuz, it would almost be like saying, 'Please attack me,'" Fox News analyst Phil Flynn said.
"It would be an act of war," he added.
About 40 percent of the world's oil passes through the Strait of Hormuz.
If Iran does close the strait down to oil transports, financial experts warn oil and gas prices in America could skyrocket as a result.