1. United States
The US military has a history dating back to 1775 when it first formed forces (Continental Army) to fight in the Revolutionary War. The US Army has been involved in every major world war as well as the Korean War, Vietnam, the Gulf War and the Global War on Terrorism.
The defense budget for the United States is more than the combined totals of the previous nine countries coming in at over $689 billion. The US has just over 1.4 million active military members, another 1.4 million reserve members and 11,000 in its paramilitary. The US ranks second behind Russia in the total number of warheads, but it does have the largest number of active warheads. The United States leads in the overall aircraft and helicopters – 21,000 – but is just barely ahead of China with its total of tanks and armored vehicles. The United States also has an impressive 12 aircraft carriers in its fleet.
This list of today’s top ten armies (military powers) in the world, certainly sheds light on the overall power of these nations given their impressive numbers in members, equipment, and budget.