In addition to the protection for being below level 21, there is another layer of protection that you need to understand.

Asset Protection:

Your camps and assets in your camps are protected from raiding while your total assets is less than 1 million in assets. Once you build above that amount (you should see a pop-up letting you know) then all of your camps and assets are available to be raided. Once you fall below that amount you are protected again.

There is another condition. Once you build more than one main and five TU camps you can also be open to raiders. On your sixth TU camp you will get a pop-up letting you know you are about to open. Once again, you are completely open to being raided.

While you are protected and including after you open you are free to defend your camps and your MDN members camps. However, you cannot raid enemy camps until you have built 1.25 Million in assets or about 250K more asset then it took to unlock your camps. This is equivalent to a modestly built TU camp. This is so that you are offering up something to the players in return you can raid them. Falling below the required camps will put the protection back in place. If you have more than 1 million built in less than five TU camps you will still be open to be raided. Be careful players might leave your NC in your camps so they can raid all your camps, especially if you are over the camp limit. Recommendation is to spend time building up V -dollars and good jitters before venturing beyond the protection levels.