The United States is the single largest arms supplier to the Middle East and has been for decades. The Trump administration appears poised to increase exports to this region further. In March 2017 President Trump reversed the Obama administration's policy of tying exports to some partners to progress on human rights.

Published each year since 1959, The Military Balance is an indispensable reference to the capabilities of armed forces across the globe. It is used by academia, the media, armed forces, the private sector and government. It is an open-source assessment of the military forces and equipment inventories of 171 countries, with accompanying defence economics and procurement data. Alongside detailed country data, The Military Balance assesses important defence issues, by region, as well as key global trends, such as in defence technology and equipment modernisation. This analysis is accompanied by full-colour graphics, including maps and illustrations. With extensive explanatory notes and reference information, The Military Balance is as straightforward to use as it is extensive. The 2022 edition is accompanied by a fullcolour wall chart illustrating security dynamics in the Arctic.

This report is the second in an annual series examining trends in what the U.S. Department of Defense (DoD) is buying, how DoD is buying it, and from whom DoD is buying. This year’s study looks in depth at issues in research and development, acquisition reform in the FY2017 National Defense Authorization Act (NDAA), performance of the defense acquisition system, the future of cooperative International Joint Development Programs, and major trends apparent in the activities of the major defense components. By combining detailed policy and data analysis, the study provides a comprehensive overview of the current and future outlook for defense acquisition.