The answer is: The sea
Back then, the techology that exist to travel by sea was not as developed as it is today. If an empire decided to travel through the sea in order to do some conquests, that empire will risk several things, such as:
- Loss in directions
- The ships could be swallowed by harsh wheather in the middle of the sea
- It need a lot of resources to maintain the armies during the travel
Because it was propbably a sad time for them to live
He used the excuse of protecting his own nation.
Treaty of Versailles banned Germany from using much armed force,and limit it's army to 100000 men,along with the rules of not allowing navy, air force and limited the amount of heavy weapon.
When Hitler took over Germany,he used the excuse of defending from other nations to start producing weapons, navy and air force again as it was greatly disarmed and unable to protect itself if invasion occur.
Hope it helps!
There is no no mutilple choice