It's certainly not inevitable, but there are a number of factors, including the massive resources each country requires as industrialization continues and the s

It's certainly not inevitable, but there are a number of factors, including the massive resources each country requires as industrialization continues and the standard of living increases, political interests and influence in smaller border nations nearby, directly shared borders, and some amount of history http://www.time.com/time/world/article/0,8599,1974028,00.html http://www.time.com/time/world/article/0,8599,1974028,00.htm...