The White House says that Trump spoke with South Korea's Acting President Hwang Kyo-Ahn about US strikes in Syria in retaliation for a suspected chemical attack by President Bashar Assad's government on civilians.
Iranian President Hassan Rouhani said on Saturday that "terrorists" were applauding his United States counterpart Donald Trump for launching a missile strike on an airbase of his Syrian government ally. We don't see a peaceful Syria with Assad in there, " Haley said on CNN.
When Wallace asked what the United States will do if Russia defends its interests in Syria, mentioning Russian Prime Minister Dmitry Medvedev's comments Friday that the USA missile strike in Syria put the two countries "on the verge of a military clash", McMaster stood firm on his position that Russia is "part of the problem" and should become "part of the solution".
Just days before the chemical attack, USA envoy to the U.N. Nikki Haley and Tillerson both had indicated that removing Assad from power was no longer a US priority.
Syrian forces launched further air strikes on Saturday, which killed 18 people - including five children - in the rebel-controlled Idlib province, the Syrian Observatory for Human Rights and the civil defence rescue service reported.
On Thursday, Trump ordered attacks against a military airbase in Syria with dozens of Tomahawk missiles, after the United States and its allies accused Damascus of killing civilians with chemical weapons on Tuesday.
US Secretary of State Rex Tillerson has criticised Russian Federation, saying it had failed to prevent Syria from carrying out a chemical attack on a rebel-held town. It said the woman killed had fled to the town from her hometown of Latameh in central Syria.
Thousands of USA troops are already in Syria and Iraq to help regional forces in the fight to defeat ISIS. The Syrian government has denied it was behind the attack. "So, really, now what happens depends on how everyone responds to what happened in Syria, and make sure that we start moving towards a political solution, and we start finding peace in that area".
The Trump administration had seemed ambivalent over whether it would push for regime change in Syria.
Russian President Vladimir Putin and Iran's Hassan Rouhani said in a phone call that aggressive United States actions against Syria were not permissible and violated global law, the Kremlin said.
President Putin regards the USA airstrikes on Syria as "An act of aggression against a sovereign state delivered in violation of worldwide law under a far-fetched pretext". Russian Foreign Minister Sergei Lavrov told US Secretary of State Rex Tillerson in a phone call that an attack on Syria plays in the hands of extremists, Russia's Foreign Ministry said on Saturday after the phone call from Tillerson.