The Prime Minister's supporting calls for the EU to lift its arm embargo on Syria - and supply weapons to rebels.
The French President, Francois Hollande, is also making the argument.
European foreign ministers are meeting to discuss the proposals.
It's been two years since violence began in Syria and a Christian charity's calling for your prayer.
Tearfund is encouraging churches to hold vigils to remember all those who are caught up in the conflict.
Morag Gillies is Tearfund's Country Representative for Syria.
She told Premier's Des Busteed during the News Hour what's happening to people there.