To start a war, you need to have at least one base and enough resources to build an army. Navigate to the 'War' section, select 'Attack', choose your target and confirm your decision.

Yes, you can join ongoing wars by selecting 'Join War' from the 'War' menu. Choose a war that is currently open for participation and follow the prompts to join.

Upgrade your base by collecting resources and visiting the 'Buildings' section. Tap on the building you wish to upgrade, then use the resources to enhance its level.

Popular Wars features various troop types including infantry, cavalry, archers, and siege units. Each has unique strengths and weaknesses, affecting your strategy in battles.