Russia and Iran warns they will 'respond with force' if US crossed it's red lines in Syria again

Allies of Syrian President Bashar al-Assad, Russia and Iran have accused the US of crossing the red line in it's Thursday night missile airstrike on a Syrian military base warning the US that will “respond with force” if their own “red lines” are crossed in Syria. 

“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,” a statement by the group’s joint command centre said.

The US on Thursday night fired dozens of cruise missiles on a Syrian airbase in retaliation for a chemical attack on civilians in the rebel-held town of Khan Sheikhoun earlier in the week, which left more than 80 people dead including several children, a move that drew criticism from Assad's allies including Russia and Iran.

The Syrian Government denies it was responsible for the chemical attack while ally Russia said the death of civilians last Tuesday was caused by Syrian forces hitting a rebel chemical arsenal there.