This report analyzes defense options available to the United States in responding to current and emerging threats to U.S. security and interests in Europe, the Middle East, and Asia. It focuses on ways that the United States might adapt military instruments to meet these emerging challenges, assessing in broad terms the cost of defense investments commensurate with the interests at stake.

This report assesses Chinese investment in U.S. aviation from 2005 to 2016. It provides context in China’s demand for aviation products and aviation industrial policies, while assessing technology transfers and impact on U.S. competitiveness. Chinese investment in U.S. aviation over the past decade has primarily involved lower-technology general aviation manufacturers that do not affect U.S. competitiveness.

The Maidan Revolution in Ukraine created an opportunity for change and reforms in a system that had resisted them for 25 years. This report examines Ukraine’s security sector—assessing what different institutions need to do and where gaps exist—and offers recommendations for the reform of Ukraine’s security and defense institutions that meet Ukraine’s security needs and align with Euro-Atlantic standards and approaches.

Machine learning algorithms and artificial intelligence influence many aspects of life today and have gained an aura of objectivity and infallibility. The use of these tools introduces a new level of risk and complexity in policy. This report illustrates some of the shortcomings of algorithmic decisionmaking, identifies key themes around the problem of algorithmic errors and bias, and examines some approaches for combating these problems.