Ministers from the Group of Seven (G7) countries and Middle East allies who met in Lucca, Italy, to discuss the Syrian conflict failed to reach a new agreement on sanctions against Russia and Syria, calling for an investigation into last week's chemical weapons attack there before adopting new measures.
Further, sanctions never hurt a government leadership, only the general population. They are always a bad idea.
And as for Trump's missile attack:
"Any honest observer would know that upholding international norms against the use of chemical weapons is not the actual objective of the [U.S.] attack. As I noted in 2013, using force unilaterally and in clear violation of international law and norms in order to uphold another international norm is a shortsighted and simply bad idea. Moreover, deterring the employment of poisonous gases hardly requires a war," writes CFR's Micah Zenko in Foreign Policy.
(via Council on Foreign Relations)