As of today, there is no ongoing World War, except of course the "War on Terror", but that's just 1 person, or country's definition.
The current state of affiars is that there are some Islamic nuts who have a problem against global capitalism and will go as far as killing themselves to disrupt society.
That is hardly a World War.
Anyway, can you "cause"
multiple simultaneous world wars? As there are no ongoing world wars, noone is causing them. Not even only a single world war.