Abraham Lincoln was the president and the Commander-In-Chief during the war, which is the highest military rank.
Ulysses Simpson Grant was Commanding General of the Union (North) along with Abraham Lincoln. Many people believe that General Grant was the commanding officer, so I would go with Ulysses Simpson Grant.
Answer: No, cite only original content from social media sites. If you want to cite content from a social media post or account that is not the original source of the content, cite it directly. If you cite a non-public post, your readers will likely not be able to see the post and verify its use in your paper. Other apps and platforms can require registration, payment, or download before access is possible.
Answer: A. its focus on organizing small local unions rather than national groups.
Germany was sinking American merchant ships.