This victory for non-interventionism was not solely on the principle of itself. Cameron's motion for action on Syria was a hastily bundled together pack of jargon that many MPs had very few clues as to what Cameron actually wanted to do. A lot of them didn't know what the yes vote was actually for, and therefore decided against it.
There was 13 votes in it, and if Cameron made his case properly, perhaps the pendulum would have swung against us.
The "no" vote was as much Cameron's own doing as the principle of non-interventionism.
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