I turned on Peace Shield before logging off and assumed my whole army was safe. Turns out one whole category of troops was never included.

🛡️ Shield Protects The Castle

Peace Shield stops other Commanders from attacking your Castle. The game's own tooltip is direct about what it does: protect your city from being attacked while it's active.

🌾 Gathering Troops Stay Exposed

The same in-game tip goes further and calls out an exception: troops that are out on the map collecting resources do not get the benefit of Peace Shield, even while it's running on your Castle. Sending everyone out to gather right before you log off doesn't put them under the same protection your city gets.

⚔️ Attacking Cancels Your Shield

There's a second catch built into the same tooltip: if you scout or attack another Commander while your Peace Shield is up, it disappears automatically. The game still lets you reinforce allies in your Alliance without losing the shield, but going on the offensive against another player switches it off on your side too.

🏛️ Certain Ground Blocks It

Peace Shield also isn't universal across the map. In-game warning text confirms it, along with a separate rule that you can't open one while your troops are actively marching out.

Did you know your gathering troops were the one group Peace Shield leaves out? 🤔