Help please !! What did the North and South disagree on?
1. the power of county law
2. the power of city law
3. the power of federal law

c. troops marched forward in close formation against newer, more accurate weapons

ww1 weapons: tank. tanks were used for the first time in the first world war at the battle of the somme. they were developed to cope with the conditions on the western front. the first tank was called 'little willie' and needed a crew of 3.