"Jaw-Jaw is better than war-war". Who gave this statement?

Winston Churchill

Sir Winston Churchill observed that jaw jaw is better than war war.

“Yes, there are a lot of speeches and meetings at the U.N., especially during the annual sessions of the General Assembly. But as Churchill put it, jaw-jaw is better than war-war.  Isn’t it better to have one place where all… countries in the world can get together, bore each other sometimes with their words rather than bore holes into each other on the battlefield?” — Shashi Tharoor