Which region do you think has the greatest military power combined in theory (I'd list some MAJOR countries in each region): (1) North America: USA, Canada, Mexico (2) Europe: Russia, UK, France, Germany, Italy, Spain, Poland, Switzerland, Sweden, Netherlands, Greece, Belgium, Denmark (3) Asia (minus Middle East, plus Australia & New Zealand): China, Taiwan, India, Japan, Pakistan, North/South Korea, South East Asia countries etc. (4) Middle East + Africa: Saudi Arabia, Turkey, Israel, Egypt, Iran, Iraq, Syria, Lebanon, Jordan, UAE, South America, Nigeria, Lybia Take into account of military strength (nukes, troops count, vehicles/air force/naval/spy/other technologies), economic power, logistics, location (easy to defend etc.). (1) USA has and edge in technology considering how much they spend on military annually and their experience in warfare is great. They also have multiple military bases around the world and their naval/air force is the most powerful so deploying units to various locations is easy. North America is hard to invade consider it's far from both Asia and Europe. (2) Europe & Russia are ahead in terms of combined economic power (total GDP), and they are also experienced in wars. They have the most number of tanks/armoured vehicles combined. Countries like UK, France and Russia also has high technology, nuking & military power. Russia has lots of natural resources. (3) Asia leads in man-power and natural resources. India and China alone makes up of 1/3 world population. China (1st), India (3rd), North Korea (4th), South Korea (6th), Pakistan (8th) are in top 10 countries with the most active military personnel. Japan, China, India and South Korea also have strong economic/military power. (4) Turkey, Iran and Egypt are also in top 10 countries with the most active military personnel. Being constantly at war, Middle East countries have strong military power and countries like Israel are not behind the western world in terms of technology and nuking. Countries like Saudi Arabia, UAE, Bahrain and Qatar can supply its neighbours with oil and economic back-up.