The recent U.S. attack on a Syrian military base is based on a cardinal idea: Bashar al Assad's regime possesses chemical weapons and used them on April 4 in a bombing that left more than 80 dead. This act of Donald Trump was condemned by the Syrian president Bashar al-Assad and also by the Russian government.

'The U.S. is prepared to do more'

The U.S. ambassador to the United Nations, Nikki Haley, on Friday (April 7th) threatened new U.S. military action in Syria, the day after the first missile attack on the Syrian regime by the government, in retaliation for the chemical attack which killed at least 86 people and shocked the international community.

"The United States made a very measured decision last night with the strike on a Syrian air base," Nikki Haley told the Security Council. "We are ready to do more, but we hope it will not be necessary. The U.S. bombing was fully justified," she said.

"The United States will not wait until Assad uses chemical weapons in the future. Those days are gone," said the American diplomat. "Now we have to move on to a new phase: a road to a political solution to this horrible conflict," she added.

Moscow suspends Air Space Deconfliction Agreement with the United States

The ambassador to the UN also lambasted the role of Moscow, believing that Russia should have tempered its Syrian ally. "The world is waiting for the Russian government to act responsibly in Syria," Nikki Haley said.

"The world is waiting for Russia to reconsider its displaced alliance with Bashar al-Assad," she added.

In the wake, Russia announced the suspension of the agreement with the United States on the prevention of air incidents in Syria after the U.S. strikes against a Syrian airfield. In October 2015, Russia and the United States signed this memorandum of understanding, containing rules and restrictions to prevent incidents between aircrafts of the two countries in the Syrian region.

The Russian and American airplanes carry out air strikes against the jihadist Islamic State group in Syria.

"The United States has attacked the sovereign territory of Syria. We call this attack a blatant violation of international law and an act of aggression," Vladimir Safronkov, the Russian ambassador to the United Nations told the Security Council. Responding to this, the U.S. Secretary of State, Rex Tillerson said: "The Russian government's reaction on this issue is very disappointing."