What weapon used in World War 1 and 2 is flat, broad, and very large?

Question

it's a question from my book world of the wars but it doesn't say anything about it in the book.

Answer 1

Well the largest artillery piece was the 80cm Gustav (not mm). The shells are like 4 times the size of a person.  It's f-ing ridiculous...

http://images.google.com/imgres?imgurl=h...

http://www.globalsecurity.org/military/s...

Answer 2

war airplane or aircraft carrier..,

Answer 3

calvery sword?

Answer 4

A spade? Men in the trenches often bludgeoned the enemy with it.

Answer 5

Aircraft carrier