Building a powerful military requires specific infrastructure and careful planning.
Keep your coasts well-guarded during war and reinforce borders shared with strong or aggressive neighbors. making-history-ii-the-war-of-the-world
High taxes can cause unrest; monitor the impact of different ethnic and religious groups on your government's support. making-history-ii-the-war-of-the-world
Use the region-level interface to build fortifications , radar arrays , and transportation networks like railways. making-history-ii-the-war-of-the-world
Form federations or alliances to strengthen your position, but be careful not to trigger unintended wars.
The economy is the backbone of your war effort. You must produce or trade for resources to keep your industries running.