Why would one classify World War I as, “The Great Slaughter?”

because of how many people died and the destruction it caused

Explanation: good luck :)

When looking at the alliances of WW1 mapped out one could infer that the triple entente alliance was placed strategically to take advantage of its location that connects to all countries of the triple alliance.
one could also say that the triple alliance was being strategic in taking advantage of its military resources. england’s location of being an island gives it the advantage of having the strongest navy, and russia’s huge landmass gives it the largest army.
hope this helps!