Modernization Of Warfare!

How the military changes!

Modernizations!

U-boats- Armed submarines

Convoy system-Merchant vessels sailed together

American Expeditionary Force-All military personnels came together

No mans land- No one would enter because they would be killed on sight.

Trench Warfare- Both sides were down in treches and they would either sit till the time got right in order to fire on the other side.

Changes in Modernization

Big Bertha

The largest and most powerful weapon back in WWI