Former Deputy Assistant to Defense Secretary James Mattis Amber Smith discusses how the U.S. doesn't have to position itself to defend Saudi Arabia.
Iran's foreign minister threatened "all-out war" if the U.S. strikes his country in response to an attack on a key Saudi oil facility.
The attack Saturday knocked out 5 percent of the world's oil supply and sent oil prices higher earlier this week. The U.S. says Iran was directly responsible for the attack, while Saudi Arabia said the attack was "unquestionably sponsored" by Iran.
What would the consequences be of an attack on Iranian soil? Iranian Foreign Minister Javad Zarif told CNN, "all-out war."
FILE - In this Aug. 29, 2019 file photo, Iranian Foreign Minister Mohammad Javad Zarif attends a forum titled "Common Security in the Islamic World" in Kuala Lumpur, Malaysia. (AP Photo/Vincent Thian, File)
Journalists film what Saudi military spokesman Col. Turki al-Malki said was evidence of Iranian weaponry used in the attack targeted Saudi Aramco's facilities in Abqaiq and Khurais, during a press conference in Riyadh, Saudi Arabia, Wednesday, Sept. 18, 2019. (AP Photo/Amr Nabil)
The Saudi military displays what they say are an Iranian cruise missile and drones used in recent attack on its oil industry at Saudi Aramco's facilities in Abqaiq and Khurais, during a press conference in Riyadh, Saudi Arabia, Wednesday, Sept. 18, 2019. (AP Photo/Amr Nabil)
Saudi military spokesman Col. Turki al-Malki displays what he describes as an Iranian cruise missile and drones used in an attack this weekend that targeted the heart of Saudi Arabia's oil industry, during a press conference in Riyadh, Saudi Arabia, Wednesday, Sept. 18, 2019. Though Yemen's Houthi rebels claimed the assault, the U.S. alleges Iran was behind it. (AP Photo/Amr Nabil)
A Saudi military officer stands near what was described as an Iranian cruise missile used in an attack this weekend that targeted the heart of Saudi Arabia's oil industry, during a press conference, in Riyadh, Saudi Arabia, Wednesday, Sept. 18, 2019. Though Yemen's Houthi rebels claimed the assault, the U.S. alleges Iran was behind it. (AP Photo/Amr Nabil)
Secretary of State Mike Pompeo walks after stepping off his plane upon arrival at King Abdulaziz International Airport in Jeddah, Saudi Arabia, Wednesday, Sept. 18, 2019. (Mandel Ngan/Pool via AP)
U.S. Secretary of State Mike Pompeo, left, meets with Saudi Arabia's Crown Prince Mohammed bin Salman in Jeddah, Saudi Arabia, on Wednesday, Sept 18, 2019. (Mandel Ngan/Pool Photo via AP)
Secretary of State Mike Pompeo, left, walks with U.S. ambassador to Saudi Arabia John Abizaid, right, and Saudi Foreign Minister Ibrahim al-Assaf, after arriving at King Abdulaziz International Airport in Jeddah, Saudi Arabia, Wednesday, Sept. 18, 2019. (Mandel Ngan/Pool via AP)
A Saudi military officer walks by what was described asa the remains of Iranian cruise missiles and drones used in an attack this weekend that targeted the heart of Saudi Arabia's oil industry, during a press conference by military spokesman Col. Turki al-Malki in Riyadh, Saudi Arabia, Wednesday, Sept. 18, 2019. Though Yemen's Houthi rebels claimed the assault, the U.S. alleges Iran was behind it. (AP Photo/Amr Nabil)
"We won't blink to defend our territory," Zarif said.
Oil prices jumped to $62.90 at the close Monday before falling into the upper $50s.
Secretary of State Mike Pompeo on Wednesday described the attack as an "act of war," and said after meetings in Saudi Arabia that the U.S. supports the kingdom's right to defend itself.
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