I am not sure how to compare combat capacity, but the French navy is the only one besides the US to operate a carriar (the Charles De Gaulle) capable of launching non-vtol aircraft (or so I have been told)
A second one is supposed to be built but has been continually put off. They have another helicopter carriar as well.
French Navy - Wikipedia, the free encyclopedia
The british are building two new carriars.
http://en.wikipedia.org/wiki/Queen_E...rcraft_carrier