Following the gruesome executive of captured Jordanian pilot Lt. Moaz al-Kasasbeh at the hands of ISIS, the Kingdom of Jordan has executed two terrorists, one of which is the female Iraqi terrorist ISIS sought in a prisoner exchange.

CNN reports that Jordan executed Iraqi terrorist Sajida al-Rishawi, who attempted to conduct a terror attack in 2005, and Ziad Karbouli, former top aide to al-Qaeda leader Abu Musab al-Zarqawi. Karbouli committed a terrorist attack and plotted others. He was convicted and sentenced to death in 2007.

The executions come just a day after ISIS released a video in which the captured Jordanian pilot was burned alive.

"Those who doubted the atrocities committed by ISIS now have the proof," Mohammad al-Momani, Jordan's government spokesperson, said on state TV. "Those who doubted Jordan's power will soon see the proof as well. (Al-Kasasbeh's) blood will not be shed in vain."

The Jordanian government had been willing to exchange al-Rishawi for Lt. al-Kasasbeh; however, it is believed the pilot was executed a month ago.

King Abdullah II had vowed "relentless" war against ISIS following Lt. al-Kasasbeh, according to Reuters.

"We are waging this war to protect our faith, our values and human principles and our war for their sake will be relentless and will hit them in their own ground," the king said, according to state television.

Although some Jordanians had been ambivalent about fighting ISIS, Lt. al-Kasasbeh's brutal execution has shifted public opinion.

However, other Arab nations have not responded in the same way. The United Arab Emirates have said they are withdrawing their aircraft from the coalition airstrikes until the U.S. can secure an effective plan to retrieve downed pilots, according to the New York Times. They had made their decision back in December after the pilot's capture.

The U.A.E. demands the U.S. place rescue aircraft, including the V-22 Osprey tilt-rotor craft, in forward positions in Iraq rather than at their current base in Kuwait. Until that is done, U.A.E. planes will not be part of the coalition strikes.

Within the coalition there is also trouble. Many European Union countries are taking part in the attacks against ISIS, but the union has criticized Jordan in the same statement in which it expressed condolences for Lt. al-Kasasbeh's death, according to Reuters.

"Our action has to be guided by the respect of international human rights law and humanitarian law," said E.U. foreign policy chief Federica Mogherini. "The European position against death penalty remains unchanged and we believe capital punishment does not serve any deterrent purpose."