Dutch cartoonist calls for 'world cartoon war' 'A cartoon that only makes you smile and not think is not a cartoon, that is an illustration,' according to Dutch cartoonist Ruben L. Oppenheimer whose cartoons in the wake of the attacks in Paris have become recognisable the world over. Oppenheimer says the role of cartoonists around the globe is now more important than ever, and he would like to create 'a world cartoon war.' IMAGES AND SOUNDBITES