Boris Jonhson Response to OPCW Report on Syria Chemical Attack

The video discusses the OPCW report confirming the use of chemical weapons in Concha Kun on April 4th. The UK is leading efforts to hold those responsible accountable, with the OPCW confirming the use of sorren. Responsibility will be further investigated, with strong indications pointing to the Assad regime. The UK and European Council aim to impose sanctions, following the US's lead in sanctioning 300 individuals. The video emphasizes the importance of accountability for those using chemical weapons.

What has the US done in response to the situation described in the text?

What is the overall message regarding accountability for those who use chemical weapons?