![With U.S. Secretary of Defense James Mattis at his side, U.S. President Donald Trump speaks during the Baltic Summit at the White House in Washington, D.C., U.S., April 3, 2018. REUTERS/Kevin Lamarque](https://thenational-the-national-prod.cdn.arcpublishing.com/resizer/v2/7M6SYZFMJG5J4XEAUPSYWWT7WY.jpg?smart=true&auth=81b359d3a68d19146f107dcc81cb0dcf862e44d2336d5d7473bcf3a81535d985&width=400&height=225)
Secretary of Defence James Mattis and President Donald Trump are discussing military options to conduct air strikes on Syria. Kevin Lamarque / Reuters
Secretary of Defence James Mattis and President Donald Trump are discussing military options to conduct air strikes on Syria. Kevin Lamarque / Reuters
White House: no final decision has been made on Syria
Russia warns that US intervention would be met with 'grave repercussions'