Dorozhand
Banned
In WW1, there were naval battles in the South Atlantic and the Indian Ocean. The naval bombardments of Madras and Penang come to mind. Additionally British colonial forces did engage those of the Germans in a 4 year struggle in Africa against the brilliant Von Lettow Vorbeck. The Middle East was also a massive theater as was Gallipoli. It's a world war not just because of the actors but also the locations.
We should then call it the Imperialist War. The rest of the world was not involved except as slaves to westerners under the imperial yoke, or as inconsequential players like China, whose participation in any petty war on the side of its oppressors and rapists is farcical.