US Strikes Syrian Airbase

We'll get all the global reaction to President Trump's action, as the Pentagon says it was a 'proportional response to Assad's heinous act'

Our colleagues in Moscow, Washington and the Middle East will assess what next in the battle for Syria

And what are the key conversations on social media around the world? You're invited too - join us @BBCOS

(Photo: A missile leaves the USS Porter. Credit: EPA / Seaman Ford Williams)