The battle of gettysburg was occurring almost simultaneously which what battle in the west? ?

frederick the great and the war of austrian succession. frederick william of brandenburg-prussia trained his son, frederick, to be a hardy soldier. he also declared himself king of bohemia, and maria theresa sent troops to retake bohemia. in august he led 80,000 of these men across the frontier into bohemia, his

which statement explains one of the reasons world war 1 was so much more destructive than earlier conflicts

may i see the answer choices?

i'm pretty sure it would be, the mediterranean sea.