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This report examines trends in Other Transaction Authority (OTA) usage across the DoD to provide insights into how the DoD is using OTAs to pursue innovation, how DoD spending under an OTA is organized, and to whom the majority of OTA obligations go.

Russia's illegal invasion of Ukraine has galvanized Europe and triggered a renewed focus on hard security and defense. This latest CSIS report analyzes whether European political will to conduct military missions and operations worldwide will be sustained in the coming years.

This latest CSIS report examines the use of unmanned aircraft systems (UASs) in combined arms warfare based on the war in Ukraine and other cases. In the future, UASs will likely play an increasingly important role in great power competition against such countries as China and Russia.

The U.S. defense industrial base is not prepared for the international security environment that now exists, including to deal with China. The United States should take several steps now to strengthen the industrial base to improve deterrence and warfighting.