Answer:
The root causes of the conflict can be traced to the crisis of 14th-century Europe. The outbreak of war was motivated by a gradual rise in tension between the kings of France and England over territory; the official pretext was the question that arose because of the interruption of the direct male line of the Capetian dynasty.
Ohhhh, in many ways.
WW1:
The sinking of merchant ships.
The sinking of civilian ships.
The bombing of civilian populations.
WW2:
The inhumane murdering of civilians.
The inhumane treating of civilians.
The inhumane testing of civilians.
Hope this Helps! :)
Answer: submarine attacks
Context/detail:
Public outrage in the US against the Germans swept the nation following the sinking of the British ocean liner, Lusitania. When a German U-boat (submarine) sank the Lusitania in May, 1915, over 1,000 persons were killed, including more than 100 Americans. The passenger liner was targeted by the Germans because they suspected weapons were being shipped to Britain in the cargo hold of the ship.
Germany managed to stave off American entry into the war at the time by pledging to stop submarine attacks. But a couple years later they resumed such attacks, and there was also an intercepted telegram that showed Germany was trying to secure Mexico as an ally against the United States. In 1917, the US declared war on Germany in response.
To take China over and take all the trade places
A lot of sea expeditions, and because not much of the world was known
