Well without full context I would assume Trench Warfare because thats what 3 1/2 of the 4 year wars where full of.
<span>Russian Sturgeon is a ancient species of fish which is about 4 meters long. The fish is a rare one with bones in it and weighs about 160 kg. They usually found near Bulgaria, Russia and Turkey. The population the Russian sturgeon further declined because of the construction of dams on the Volga</span>
The speaker of the house is voted on by members of the congress
hope this helps
It impacted them both in the way that they got things they didnt have before and it impacted the new world as it brought diseases they couldnt cure.