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There was, however, one notable absence - Alex Salmond.
Instead of taking part in the debate, the former leader of the Scottish National Party was 400 miles away, unveiling a portrait of himself at the Scottish National Portrait Gallery in Edinburgh.
Salmond, who is now the SNP's foreign affairs spokesman has been very critical of the Government's military involvement in Syria, so it was very unusual for him to miss such an important debate.
Here he is posing with the portrait.
Portrait of @AlexSalmond with artist Gerard Burns pic.twitter.com/ZkxsYjOuf8
- Peter MacMahon (@petermacmahon) November 26, 2015
Met Ryan from St Margaret's at Scot-Malawi event - he showed me his @AlexSalmond impression - I'd say he nailed it! pic.twitter.com/PZsnDCly14
- Humza Yousaf (@HumzaYousaf) November 23, 2015