For those of us who have watched the region for decades, this crisis did not come out of nowhere.
Jeremy Corbyn has forced three government U-Turns - and destroyed the case against war, says Dave Ward.
Islamic State has gripped the imagination of western politics, but many Syrian rebels are more concerned by Assad. If we are to intervene in Syria, we must make it clear he has no long-term role to play.
We should be in no doubt that our intervention will greatly increase the chances of Islamic State striking in a big way.
Robin Cook's former adviser explains why he's convinced by the case for bombing in Syria
The Labour leader made his case in the House of Commons.
And so, until there is a better plan on the table, I will vote against bombing Syria, says Owen Smith.
The decision is finely balanced: but I'm voting to extend our airstrikes, says Dan Jarvis.
Chi Onwurah lays out why she'll be voting against British airstrikes in Syria.
To understand why IS draws thousands of would-be fighters from the West, we need to view the militant group through the lens of the fighters themselves.
The government appears not to understand the nature of its enemy, warns Maria Norris.
The Zombie PM