In 1899 the Aethership "The Maine II" is destroyed in Mars' orbit and all 266 men aboard were killed. With Spain now militarily and politically irrelevant, the U.S. turns it's eye towards the new unified Germany and it's "Iron Chancellor" Otto Von Bismarck.
President McKinley invokes the Monroe doctrine again and Col. Roosevelt and his Rough Riders board the Aethership "Stalwart" and head to Mars.
"Bully for American martial ingenuity and down with the belligerent Hun! Their Krupps weaponry are no match for a Hotchkiss-Jorgensen!" "This will be a splendid little war!" - Col. Theodore Roosevelt
And they charged the Martian sepoy line crying, "Remember the Maine II!"
Col. Roosevelt and the Rough Riders on the beachhead on Cydonia, Mars