The US Army is the oldest and biggest branch of military in service, they are also the largest land combat force.
As of 2016, China has the biggest military force in the world with 2,333,000 active personnel. In 2nd place is the US followed by India in 3rd and North Korea in 4th. China has recently had a 12.2% increase in military spending over the past few years with a current defense budget of $126 billion.
Russia.
The purpose of the military is to use force to defend a country. The most effective means of applying force is a gun.
Nigeria
Australia
The US Air Force is part of the military. The mission of the military is to protect and to serve. The Air Force accomplishes this mission from the air.
It depends on what you mean by biggest. If your talking about military strength (ability to do damage), its different than pure military size (number of people). my guess for military strength is: China India UK Russia etc.
In the second century it was the Roman force that was powerful both in their military strength and politically as well.
Britain Has The Best Spec Ops Team In the World And We Had The Biggest Air Force In The World But We Gave Some To America And We Have The Biggest Military Force In The World So There You Go
domnican republic:)
Iraq