General Sir Mike Jackson, former head of the British Army, told ITV News that the situation in Syria is "worse or at least as bad as Libya".
In response to Tony Blair's comment to ITV News that "all options should remain open" in Syria, he said:
There is nothing I would take exception to. A decision to do nothing is a decision and it is a course of action.
Syria is worse or at least as bad as Libya was when Nato action was taken."
More top news
Daniel Cowell has been jailed for five years and four months after ramming a police patrol car with a stolen transit van.
The OPCW have left the site of the suspected chemical weapons attack in Douma and should have results in about a week, ITV News understands.
First Minister Carwyn Jones revealed his plans in his speech at the Welsh Labour conference.