This high amount of spending has helped to maintain the military dominance of the United States around the world. This stretches to a number of aspects and is evident in the United States accounting for more than a quarter of active military aircraft globally. Although current aircraft are important, new drone technology has created a new arms race arena. By 2020, the expected market value for military UAVs worldwide is set to reach 11.6 billion U.S. dollars.
Given the variance in country sizes and the strength of their respective economies, military expenditure as a percentage of gross domestic product is a useful tool for evaluating the importance particular states place on their military. In this measure Saudi Arabia stands out from all other countries. In 2015, 13.7 percent of the country’s gross domestic product was spent on defense and arms.
But when it comes to military power, size certainly matters. As such, larger states such as the United States and China have massive militaries despite spending less as a portion of their gross domestic product. China has the biggest military in the world in regards to military personnel, counting over 2.3 million people in their ranks. Despite placing more emphasis on technology and weaponry, the size of the United States military still numbers over 1.3 million.