Time and Resources are two major elements a commander would like to contribute in a SLG. So, how could a commander protect recourses? 

1. Storage Protection

　　You would not able to store more resources than you could have stored. It is such a pity to waste those extra resources. So, expanding your storage as large as possible seems to be one easy way. But, expanding storage costs resources that a commander could have spent somewhere critical in achieving some specific goals. 

　　As a beginner, you might experience resource shortage frequently.  Learn to balance supply and demand. 

　　Because each building requires different amount of resources to level up. It is wise to use some portion of plentiful resources and save some portion of insufficient resources. 

2. Setup Defending Troops

　　Setup your strongest troop to guard your resources from enemies’ invasion. Trust me, it is not worthy to let mediocre troop to guard your resources.

3. Purchase Protection Card from Shop

　　Cannot stop your enemy? Spend a few Diamond to buy Resource Protection Card. I gurantee you that your enemy could not touch your hair at all.