spending on defense and security has increased significantly since the mid-1990s and was about us$63.7 billion, as of 2016. saudi arabia ranks among the top 10 in the world in government spending for its military, representing about 7 percent of gross domestic product in 2005. its modern high-technology arsenal makes saudi arabia among the world's most densely armed nations, with its military equipment being supplied primarily by the us, france and britain.