How to activate the city shield?

City defence buff is automatically applied for a certain period when creating a new character. To activate a City Shield, go to your Items and find the City Shield item under the "Buffs" tab. Once activated, your city becomes immune to enemy attacks for a certain period of time. You can also purchase shields from the in-game shop or earn them through events and quests. Be aware that attacking another player while the shield is active will cancel its effect immediately.