The joint statement made by the coalition backing the Assad government clearly noted that there would be a forceful response to any further attacks by the US, and, according to Reuters:

"What America waged in an aggression on Syria is a crossing of red lines. From now on we will respond with force to any aggressor or any breach of red lines from whoever it is and America knows our ability to respond well," according to the Russia, Iran joint command center.

The strike on al Shayrat airbase, which the US claims Syrian forces used to conduct a chemical attack that killed over 70 people, was carried out unilaterally by the US, with President Donald Trump claiming that the strike was "representing the world."

Russian President Vladimir Putin called the strikes a "violation of international law," and called for an objective investigation into the chemical attack.

US politicians from both sides of the aisle, such as Senator Richard Black (R), Congresswoman Tusli Gabbard (D), and Congressman Thomas Massie (R) have strongly questioned the legitimacy of the 'chemical attack by Assad' narrative, noting that there is a strong likelihood the so called "moderate rebels," who are actually terrorists, were responsible for the deaths and blamed it on the Assad government.