As long as records have been kept, mankind has been embroiled in one war after another, and conflicts became more and more destructive as men developed more efficient ways of killing one another.
Alates ajast, mille kohta on olemas kirjalikke ülestähendusi, on inimkonda pidevalt vaevanud sõjad, kusjuures konfliktid on muutunud seda hävitavamaks, mida tõhusamaid viise inimesed on leiutanud üksteise tapmiseks.