The term "German unification" pertains to the progression in which the once divided German states and regions, such as Prussia and Bavaria, joined forces to create a unified country called the German Empire in 1871. This feat was accomplished through the guidance of Prussian Chancellor Otto von Bismarck, who orchestrated a sequence of diplomatic and military confrontations.

make this sound like a 9th grader wrote this

German unification is when Germany became one big united country in 1871. Before that, Germany was split up into different states and regions like Prussia and Bavaria. This dude named Otto von Bismarck, who was in charge of Prussia, was a big part of making it happen. He did a bunch of stuff like getting into fights and making deals to get all the German states to come together and form the German Empire.