Cubic_GATR_Antenna_PuertoRico_2-879×485

05/26/2019

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.

View All »

The Age of Chaos: Democratic Strategy, Kill Web Warfare, and Authoritarian Power

03/23/2026 We are not living through a passing disturbance. We are living through the Age of Chaos — a systemic transition from one global order to another whose destination remains fiercely… Read more »

Our Partners