MacArthur
To the best of my knowledge, they are the same as the US Army. 2nd Lieutenant 1st Lieutenant Captain Major Lieutenant Colonel Colonel Brigadier General Major General Lieutenant General General There is only one general (aka 4-star general) who commands the entire US Marince Corps, and he is known as the Corps Commandant.
Eisenhower and Patton are probably best known.
Brand of what? Nike, Toyota, General Mills, Johnson & Johnson
General Hodges was honored to be appointed to command the US Third Army in Europe. His handicap was that General Kruger took most of the best officers of the Third Army to join him in the new Sixth Army.
By all accounts, US Grant was the US' best general in the Western theater. His persistence allowed the Union to make great strides there. His near disaster at Shiloh and the inability to capture Vicksburg on a timely basis did harm his reputation. Later in the Eastern Theater, his battles with Lee displayed some of Grant's weaknesses.
Most modern day historians cite General US Grant as the best and most likely Union general to place great great value in offensive military operations. The best example of his favoring offensive operations was his Overland campaign in Virginia in the Spring of 1864.
They are somehow under the US Attorney General. I just know that the US Attorney General is the head of the US Department of Justice.
General Sherman remained in the army after the US Civil War. In March of 1869, President US Grant promoted Sherman to the US general in chief.
Secretary General is not a political office in the US. So, no one.
What they aren't telling is what they don't know, or is best kept from the general public. Considering what the general public does with terrestrial matters (rumor/panic/hasty actions), this is probably for the best.
The first female US Attorney-General was Janet Reno.
Otto Lessing - US General - was born in 1904.