DUH
You need to pay attention:
1.Middle east: Isis,(Now Al Kaida in Aftg.) and Iran all want to "rule  the world as a Caliphate." They'll kill everyone, including children who are "infidels" Do nothing, but they'll still kill you.
2.Russia: Putin wants to Return Russia to the Empire of Peter the Great. They'll push until someone pushes back.
3.China: They want to take over Int. waters(Yellow sea etc.)In the past this was a declaration of war and/or piracy.They'll continue until you stop them(hint: Japan during the 1930s in Asia).
4.N.Korea:(aka China-2)..They're crazy enough to start a war with Japan , S.Korea and U.S.  if China tells them to.(hint: every time we yell at China N. Korea launches a missile and/or presents a nuclear test and China increases food, weapons and exports to N.Korea.

Simple, the war(s) are coming to you and for you. You can defend yourself or be prey!