Answer:
The Treaty of Paris, which ended World War 1, actually played a large part in setting the stage for World War 2. Humiliated in defeat, crushed by debilitating war reparation payments, and angered by the war guilt clause, Germany came out of the war a truly weak nation.
Explanation:
I believe the answers is d
Casualties, Wartime labor, invasion, economic depression.
This is true, not having a navy has shown itself to be a weakness of many nations/civilizations in the past. And there are also good reasons why this is so. Not having a navy strongly impacts a civilizations ability to maneuver around certain points and go around them. It also limits the ability to trade with other natons. Not to mention the additional value of having the firepower of ships (those that had cannons later on at least).