In an article for the Huffington Post, Caroline has detailed why she'll be voting against the UK launching air strikes in Syria. 

In the piece she said:

"Last week I listened carefully to the Prime Minister make his case for why the UK should join the bombing campaign against Isis. The debate in the House of Commons was thorough, and the horror and revulsion at recent atrocities in Syria, Paris, Beirut and elsewhere is shared by MPs from across the political divide. 

"Yet I have still to see any evidence to suggest that UK bombing Isis targets in Syria is likely to increase our security here in Britain or help bring about a lasting peace in the region in question - to the contrary, the evidence appears to suggest it would make matters worse."

You can read the full comment piece by Caroline here: http://www.huffingtonpost.co.uk/caroline-lucas/syria-air-strikes-carolin...