How the submarine and the tank changed traditional warfare in World War 1?

World War I  introduced submarines as a naval weapon in warfare. Germany used submarines to sneak up on ships and sink them with torpedoes. They even attacked Allied passenger ships such as the Lusitania.

Explanation:

answer; i believe that the correct answer is (tabula rasa);

answer; ///(c) i believe that the correct answer is ethnic relations bear many similarities across different global; good luck