Answer:
The sinking of the Lusitania by the Germans during World War I was considered controversial by the United States for a few reasons. Firstly, the Lusitania was a British passenger liner, but it carried American passengers, which made the incident resonate with the American public. The loss of American lives raised outrage and sympathy for the victims.
Secondly, the sinking violated the principles of international maritime law, as the Germans attacked a civilian ship without warning. This action contradicted the concept of "freedom of the seas" that the United States advocated.
Additionally, the sinking of the Lusitania played a role in shaping public opinion and influencing the United States' decision to enter the war. It fueled anti-German sentiment and helped build a case for American intervention in the conflict.
Overall, the sinking of the Lusitania was controversial due to the loss of American lives, the violation of maritime norms, and its impact on public opinion regarding U.S. involvement in World War I.