Israel called the annihilation of ISIS a "milestone" but Britain noted that the fight against rebels has not ended.

"It's not a big deal. You just destroyed what you created," Iranian Information Minister Mohammad Javad Azari-Jahromi wrote on Twitter shortly after President Donald Trump confirmed the leader. The Supreme State of Islamic State (IS) Abu Bakr al-Baghdadi was killed in a special US military campaign in northwest Syria.

Russia meanwhile was cautious about the information announced by the US President. "The Russian Ministry of Defense does not yet have reliable information on the operations of US servicemen ... or another declaration of 'abolition' of former IS IS leader Abu Bakr al-Baghdadi," Major General Igor Konashenkov told the agency. RIA Novosti news agency.

"Countering terrorism is a much more difficult task than physically destroying their leaders," said Senate Foreign Affairs Committee Chairman Konstantin Kosachyov.

"I congratulate my allies on the past campaign. My mind today is directed to all the victims of the madness that Bagdhadi has instilled as well as the criminals who followed him," said the Secretary of Defense. France Florence Parly tweeted.

British Prime Minister Boris Johnson said Baghdadi's death was "an important moment" in the fight against terrorism but "the fight against ISIS is not over". "We will work with our partners to stop the evil and barbaric acts of IS forever," he said.

"Turkey is proud to have helped the US, our NATO ally, bring a notorious terrorist to justice. Today we are commemorating the civilian victims of Abu Bakr al-Baghdadi and even military heroes who sacrificed their lives to protect the world from Daesh, "Fahrettin Altun, senior president of Turkish President Tayyip Erdogan, said in a statement.

"Turkey ... will continue to work closely with the United States and other countries to combat terrorism in whatever form and expression it is. It's time to join forces and defeat all terrorist groups. in the region, "Altun stated.

Israeli Prime Minister Benjamin Netanyahu congratulated his US counterpart for his "impressive record" of destroying ISIS leader Baghdadi. "It reflects our shared determination, that of the United States and all other free nations, in the fight against terrorist organizations and countries. This achievement is an important milestone, but the campaign is still in the foreground, "he said.