There were many problems in ww1 such as Battle of the Somme, Gallipoli, sinking of the lusitania, but these are not issues. The biggest issue was probaly the terrible living conditions that soldiers had to put up with. Disease had free reign, rats gnawed all food, the stench of unwashed bodies could knock you dead[so to speak] and fleas made life even harder. Plus trench foot. Seach trench foot and you will be disgusted. It is amazing that soldiers managed to fight at all.
Russia suffered the biggest losses during WW1.
The nuclear bomb.
Russia.
The Great War, because it was the biggest war the world had ever seen.
to invade Russia
Russia.
Baja California actually had the biggest influence because their market went way down during the war
Lead poisoning
thhtutyukiillkkk of tgghgghgh
RuSsIa
The four Iowa class.
Tirpitz class.