WhiteFox Defense Strategic Advisor and drone expert Brett Velicovich discusses the operation and mission of the airstrike that hit General Qassem Soleimani. You only get "one shot" while taking down a target like Iranian General Qassem Soleimani, drone expert Brett Velicovich said Saturday. Appearing on "America's News HQ: Weekend" with host Ed Henry, Velicovich -- who once tracked Soleimani's movements -- said that the drone strike on Soleimani was a " forceful reminder that the Iranians can no longer attack Americans with impunity, [as well as] that the U.S. government can retaliate with a wide variety of options that are both devastating actions that are short of war." "Thanks to President Trump's decisive action, we are able to use one of the tools within the government's arsenal to strike and to strike Soleimani with precision," he added. The MQ-9 Reaper drone was used to strike Soleimani early Friday at the Baghdad International Airport. With a range of 1,150 miles and the ability to fly at altitudes of 50,000 feet, the Reaper weighs almost 5,000 pounds.

Iran vows retaliation; Lt. Col. Daniel Davis, Walid Phares, and Rep. Mark Green react. A giant question mark hangs over the Middle East as the world waits to see what action Iran will take to retaliate for the long-overdue killing Friday morning of Iranian Gen. Qassem Soleimani in a drone strike ordered by President Trump. President Trump made the right decision in ordering Soleimani killed in Iraq. I've been arguing for four years that we ought to take out this dangerous enemy of the United States, who was responsible for the deaths of hundreds of Americans and wanted to kill many more. Thankfully, his killing days are over.

Get live updates and reaction here. The American drone attack near the Baghdad airport early Friday that killed Maj. Gen. Qassim Suleimani, the powerful Iranian commander, drastically ratcheted up tensions between Washington and Tehran, threatening to tip hostilities into war. Here's what to know about what happened and what comes next. General Suleimani was Iran's most powerful security and intelligence commander.

Democratic presidential hopeful Rep. Tulsi Gabbard, D-Hawaii, said Thursday that she would re-enter the Iran nuclear deal and end sanctions in response to Iran's involvement in drone attack against Saudi Arabia oil facilities if she was president. "What I would do is, I would re-enter the Iran nuclear deal to prevent Iran from continuing to move forward in building a nuclear weapon that puts us and the world further at risk," Gabbard said on "The Story with Martha MacCallum." Every day that we don't do this, every day we continue down this failed strategy Iran gets closer and closer to a nuclear weapon. U.S. officials told Fox News on Tuesday that Iranian cruise missiles and drones were both used in the attack on the two Saudi Arabian oil facilities, and that they were fired from inside southwest Iran this past weekend. Gabbard called the attack a "retaliation" against "extreme sanctions."

RIYADH – Saudi Arabia alleged Wednesday an attack by drones and cruise missiles on the heart of the kingdom's oil industry was "unquestionably sponsored by Iran," naming but not directly accusing Tehran of launching the assault. Iran denies being involved in the attack claimed by Yemeni rebels, and has threatened the U.S. that it will retaliate "immediately" if Tehran is targeted in response. The news conference by Saudi military spokesman Col. Turki al-Malki comes after a summer of heightened tensions between Iran and the U.S. over President Donald Trump unilaterally withdrawing America from Tehran's 2015 nuclear deal with world powers. The U.S. alleges Iran launched the attack, which Yemen's Houthi rebels earlier claimed as a response to the yearslong Saudi-led war there that's killed tens of thousands of people. Al-Malki made a point not to directly accuse Iran of firing the weapons or launching them from inside of Iranian territory.

DUBAI, UNITED ARAB EMIRATES – The assault on the beating heart of Saudi Arabia's vast oil empire follows a new and dangerous pattern that's emerged across the Persian Gulf this summer of precise attacks that leave few obvious clues as to who launched them. Beginning in May with the still-unclaimed explosions that damaged oil tankers near the Strait of Hormuz, the region has seen its energy infrastructure repeatedly targeted. Those attacks culminated with Saturday's assault on the world's biggest oil processor in eastern Saudi Arabia, which halved the oil-rich kingdom's production and caused energy prices to spike. Some strikes have been claimed by Yemen's Houthi rebels, who have been battling a Saudi-led coalition in the Arab world's poorest country since 2015. Their rapidly increasing sophistication fuels suspicion among experts and analysts however that Iran may be orchestrating them -- or perhaps even carrying them out itself as the U.S. alleges in the case of Saturday's attack.

DUBAI, UNITED ARAB EMIRATES – A weekend drone attack on Saudi Arabia that cut into global energy supplies and halved the kingdom's oil production threatened Sunday to fuel a regional crisis, as Iran denied U.S. allegations it launched the assault and tensions remained high over Tehran's collapsing nuclear deal. Iran called the U.S. claims "maximum lies," while a commander in its paramilitary Revolutionary Guard reiterated its forces could strike U.S. military bases across the Mideast with their arsenal of ballistic missiles. A prominent U.S. senator suggested striking Iranian oil refineries in response to the assault, claimed by Yemen's Iran-backed Houthi rebels, on Saudi Arabia's largest oil processing facility. "Because of the tension and sensitive situation, our region is like a powder keg," warned Guard Brig. "When these contacts come too close, when forces come into contact with one another, it is possible a conflict happens because of a misunderstanding."

The attack comes after Iran exceeded their enriched uranium stockpile limit in the nuclear deal. An Iranian official responded Sunday after U.S. Secretary of State Mike Pompeo pointed at the nation's government in Tehran following Saturday's drone attacks on Saudi Arabia oil facilities. "The Americans adopted the'maximum pressure' policy against Iran, which, due to its failure, is leaning towards'maximum lies'," Iranian Foreign Ministry spokesman Abbas Mousavi said, according to the Associated Press. On Saturday, Pompeo charged that Iran's government in Tehran ordered "nearly 100 attacks" on a Saudi refinery and oilfield, further alleging that Iranian President Hassan Rouhani and Foreign Minister Mohammad Zarif pretending "to engage in diplomacy." On Sunday, Mousavi dismissed Pompeo's remarks as "blind and futile comments."

WASHINGTON – U.S. Secretary of State Mike Pompeo on Saturday accused Iran of leading attacks on Saudi oil plants that cut the kingdom's output roughly in half, ruling out Yemeni involvement and denouncing Tehran for false diplomacy. Yemen's Iran-aligned Houthi group claimed credit for Saturday's attacks on two plants at the heart of Saudi Arabia's oil industry, including the world's biggest petroleum processing facility. Pompeo, however, said on Twitter that there was no evidence the attacks came from Yemen. "Tehran is behind nearly 100 attacks on Saudi Arabia while Rouhani and Zarif pretend to engage in diplomacy," Pompeo said, referring to Iran's President Hassan Rouhani and Foreign Minister Mohammed Javad Zarif. "Amid all the calls for de-escalation, Iran has now launched an unprecedented attack on the world's energy supply," he added.

The attack comes after Iran exceeded their enriched uranium stockpile limit in the nuclear deal. Secretary of State Mike Pompeo called on the international community to join him Saturday in condemning Iran for drone attacks on two Saudi oil facilities, which he described as "an unprecedented attack on the world's energy supply." "Tehran is behind nearly 100 attacks on Saudi Arabia while [President Hassan] Rouhani and [Foreign Minister Mohammad] Zarif pretend to engage in diplomacy," Pompeo tweeted, referring to the nation's president and foreign affairs minister. There is no evidence the attacks came from Yemen." Iran-backed Houthi rebels in Yemen claimed responsibility for the attack hours before Pompeo's tweet. The world's largest oil processing facility in Saudi Arabia and a major oil field were impacted, sparking huge fires at a vulnerable chokepoint for global energy supplies. "The United States will work with our partners and allies to ensure that energy markets remain well supplied and Iran is held accountable for its aggression," Pompeo concluded. According to multiple news reports that cited unidentified sources, the drone attacks affected up to half of the supplies from the world's largest exporter of oil, though the output should be restored within days. It remained unclear if anyone was injured at the Abqaiq oil processing facility and the Khurais oil field. Sen. Chris Murphy, D-Conn., who sits on the Senate Foreign Relations Committee, denounced Pompeo's description of the attack, calling it an "irresponsible simplification." "The Saudis and Houthis are at war.