The reference provided indicates that the United States has one of the most powerful armies in the world, featuring significant resources including:
- 1,400,000 active personnel
- 39,253 armored vehicles
- 91 Navy destroyers
- 20 aircraft carriers
While the reference doesn't definitively state that the US Army is "World No 1", it clearly highlights their substantial military strength and advanced capabilities. It is important to note that various rankings exist, and there is no single, universally agreed-upon "World No 1" army.
The reference from military.com focuses on the United States and its considerable military assets as a global military power, and this suggests that it is widely considered among the top contenders.