"Every soldier will have a nest" means that any group (from a big country to a small one) will certainly not be outstanding if its leaders do not have a level of idiot; If the leadership of this group is very powerful and high-level, then this group must be excellent.

This sentence is similar to a foreign proverb: "A flock of sheep led by a lion can defeat a flock of lions led by a sheep." This sentence has the same effect.