U.S. Marines with HMH-461 conduct flight operations and simulate air-delivered ground refueling

08/09/2025

SLD BOOKSHOP

The Second Line of Defense team provides high quality publications with regard to key global strategic developments. You can purchase these on a number of booksellers such as Amazon, Barnes & Noble and Kobo.

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Lessons from the Drone Wars

03/01/2026 Lesson from the Drone Wars argues that the “drone wars” mark a wider transformation in warfare, where intelligent mass, mesh networks, and maritime autonomous systems are reshaping force design, deterrence,… Read more »

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