The House of Commons is to spend a whole day debating whether the UK should start bombing Isis targets in Syria as well as in Iraq.
In the wake of the Isis Paris attacks and leader of the opposition Jeremy Corbyn's 11th hour decision to allow his MPs a free vote, the vote looks very likely to pass with a majority.
Corbyn had previously told his party to oppose military action, citing the failed 2013 vote to intervene in Syria after Bashir al-Assad used chemical weapons on his own people, and the mistakes made during the 2003 invasion of Iraq.
The fact that the six-year-long Chilcot inquiry into the Iraq War still hasn't been released hasn't been ignored, and lots of people are making the same macabre joke:
Or suggesting that Sir John Chilcot can just stay on for the next inevitable inquiry.
In October it was revealed the inquiry was likely to be published next June or July. So we'll just need to retroactively apply the lessons we learn from that to the bombing campaign that could start in days.
A man carries a girl injured in a reported barrel bomb attack by government forces on June 3, 2014 in Aleppo (Baraa al-Halabi/Getty)