In Countryballs at War, your main objectives include conquering territories, managing resources, and building a powerful army. Strategic planning and effective utilization of units play a critical role in achieving victory.

To upgrade your units, navigate to the unit management screen, choose the unit you want to enhance, and select the upgrade option. Resources will be required, so ensure you have enough to proceed with the upgrade.

Utilize terrain advantages, deploy varied unit types, and coordinate attacks effectively. Flanking maneuvers and ambush tactics can also turn the tide in battles against more powerful adversaries.

Yes, forming alliances can be beneficial. To create an alliance, go to the social menu, select 'Create Alliance,' and send invitations to other players. Communication and mutual support are key for successful alliances.

Resource management is crucial. Follow these steps for better resource handling: 1. Monitor your resource production rates closely. 2. Allocate resources based on immediate needs (units, upgrades, etc.). 3. Prioritize expansion into resource-rich territories. 4. Regularly check your inventory to avoid shortages.