United States Is the Most Powerful Military In The World. When you think about largest armies in the world you will no doubt also think about the US whose army which is considered the strongest and best equipped in the world. It also has the largest military budget of $610 billion which is far larger than its closest rival China at 216 billion and is actually bigger then the next nine countries combined. The country’s army was formed way back in 1775 and since then the army of this country has come a long way. Today, it has about 1,492,200 active duty personnel. The US has the second largest army in the world and it is considered one of the best-trained and most powerfully equipped armies in the world. It has by far the most aircrafts, biggest advancement in technologies like the Navy's new rail gun, best trained human force and the world's largest nuclear arsenal.
The "Railgun" is amazing.