Here you go!

War has always been found out as the main cause of destruction of civilized societies throughout the course of history. In early age war (Early age of what? Be specific as the original passage mentions "stages of civilization growth." Complete sentence/rephrase it) seemed more reasonable to states as its benefits outweighed its devastations thus, states indulged in war without fearing its consequences. War has a subtle yet harmful way of making people war addicts eventually. (This sentence lacks connection and gives incomplete sense here). War not only feeds upon the state’s economy and government regime through, (This comma does not belong here.Reconsider its position) exhausting large share of state resources and human resources, but also destructs people’s living standards (Are you sure about this that real passage talks about it? Ponder over it). In modern times war has become even more harmful due to advent of nuclear age and modern weaponry. (The original paragraph does not mention "nuclear age" or anything of contemporary times. It does talk about a point where society's growth is sufficient). Consequently, it is crucial for safety human life to remove this ever-spreading disease. However, history after facing wars has highlighted that this damage to civilization and human race can be avoided through two different ways; individuals can either refuse personal engagement in war i.e. a selfless sentiment or individual and government’s collective effort to abandon warfare for peace. Experience advocates that second solution proves to be more efficient. (There seems an unequal attention given to the first part of the passage and lack gist from the second one).

Precis must be in Past tense. Do not add something alien to precis, keep your focus only on the original paragraph idea. And, Do not make grammatical mistakes.
Good work, keep practicing.
Hope it helps!