"Clearly, the Assad regime did not get the message last year. This time, our allies and we have struck harder. Together, we have sent a clear message to Assad, and his murderous lieutenants, that they should not perpetrate another chemical weapons attack for which they will be held accountable," Mattis said.
He also stated that Donald Trump, as the U.S. Commander in Chief, has an authority under the Constitution to use military force to protect U.S. interests.
"As our commander in chief, the president has the authority under Article II of the Constitution to use military force overseas to defend important U.S. national interests. The United States has an important national interest in averting a worsening catastrophe in Syria, and specifically deterring the use and proliferation of chemical weapons," Mattis added.
On April 7, the volunteer organizations reported that the chemical attack at Douma, the East Ghouta took place. As a result of this attack at least 70 people died. The Syrian government and Russia called this information untrue, while the US and allies have blamed Bashar al-Assad for the attack.
Later U.S. President Donald Trump announced about a coming missile attack in Syria and urged Russia to be prepared. Also, the British troops prepare for the operation.
In its turn, Russia’s Foreign Ministry claimed that the missiles should aim the ‘terrorists’. The General Staff of Russia recommended the US and its allies to restore Syrian Raqqa instead of threats.
Also, on April 12, President Trump specified when the US will attack Syria.
As at April 13, Germany and Italy refused to participate in the possible military operation in Syria.