"Last night, we obliterated the major research facility that it used to assemble weapons of mass murder", Haley told an emergency UN Security Council meeting on Syria. "When our president draws a red line, our president enforces a red line".
She further said that chemical weapons are so heinous that the entire community has agreed to ban it.
Her remarks come after, the USA, along with the United Kingdom (UK) and France together launched airstrikes against suspected chemical weapons facilities in the war-torn country.
Haley also said the United States would not pull its troops out of Syria before three goals have been accomplished: defeating Islamic State militants, ensuring chemical weapons will not be used and maintaining the ability to watch Iran.
According to the Russian Defense Ministry, the missile strike against Syria's military and civilian infrastructures was carried out by U.S. warplanes and naval ships in cooperation with the British and French air forces between 03:42 and 05:10 Moscow time on Saturday.
McKenzie said the operation was "precise, overwhelming, and effective", adding it will set Syria's chemical-weapons program back "for years".
"This operation does not represent a change in U.S. policy, nor an attempt to depose the Syrian regime".
Syria and Russian Federation deny that any chemical attack occurred and say the incident was staged by foreign intelligence services so it could be used as a pretext for military action against Assad.
"We will not stand by passively while Assad, backed by Russian Federation and Iran, ignores global law", White said.
"You can keep burning people alive and dropping barrel bombs over cities, but don't use chemical weapons, because it will make us look bad".
Huge blasts were reported around Damascus early on Saturday, moments after the US, France, and Britain announced they were striking Syria's chemical weapons capabilities. President Donald Trump "enforces" the red line and the U.S. will sustain the pressure on the war-torn nation, she said.
The three sites included the Barzah chemical-weapons research and development center near Damascus that was hit by 76 missiles and "destroyed".