Might of US and Russia could halt ISIS
Among other things, they supply 80% of the total weaponry used in the war.
If so, why is it not happening?
If a ceasefire was achieved, the Syrian army, backed up with the full panoply of American and/Russian war technology, could lead the assault on Isis in their country.
No other army can do that in a way that ensures stability in the country post-ISIS.





