Soldiers recently completed a massive joint-force and multinational war game in Hawaii.U.S. Army photo by Pfc. Mariah AguilarThe US Army has been wargaming in the Indo-Pacific, preparing for what a future war might look like.It faces challenges in navigating and fighting in the vast, geographically diverse region.The Army's recent training in Hawaii helps it adapt to and prepare for those issues.In a future war in the Indo-Pacific, the US Army could find itself navigating vast oceans, scattered islands, and thick jungles just as it did during World War II, and that's forcing the Army to think carefully about what readiness looks like."The ability to train in this terrain is really a critical enabler to enhance and drive our warfighting readiness," US Army Maj.