The highest in the caste system are the Brahmins.
The second last sentence of the first paragraph is the key message conveying Lincoln's view that war was forced for the protection of the nation.
"<span>Both parties deprecated war; but one of them would make war rather than let the nation survive; and the other would accept war rather than let it perish."</span>
He restarted the conscription process in Germany and built up Germany’s Air Force and Navy
An Invisible Warfare is basically when the victims of an attack are unaware and without warning nor immediate knowledge are being attacked.