Kvasnicka and Bethmann (2007) believe that posterity's perfect understanding of the similar and combined effects of these wars can be enhanced by making a holistic view on the effects these wars had on migration, global population sex ratio and labor availability, and world order. Each of these perspectives would now be looked in context to see how the effects of the two wars were similar on them.
In his book An Illustrated History of the First World War, Keegan (2001) maintains that the world's population knew an unprecedented trend in location and relocation during WWI. This location and relocation was usually from one country to another or from one city/town to another. Such movement was usually to flee from danger from one part of the world to another part of the world where danger was not so imminent. According to Keegan, such movement was ever feasible because, although this war was termed a world war, it practically did not involve all the countries of the world per se. ...Show more