I have another question what technology do you feel had the greatest impact on the War?

Modern military technology, U-boats and poison gas, had major impact throughout the Great War. This type of modern military technology, U-boats, were German submarines. These U-boats did tremendous damage to the Allied side, sinking merchant ships carrying vital supplies to Britain.

I don't see your other question, which war are you referring to?

b.

explanation:

he is racist

"oh, lets coppy china and build a great wall around bla bla bla.that way,we wont lose out to other countries." in the end, he did not build anything