This Open Access book examines how Estonia, Latvia, Lithuania and Poland have adjusted their security strategies in response to increasing geopolitical threats. Moving beyond traditional deterrence, these states have adopted a Total Defence approach as an inclusive strategy that unites the military and civilian sectors to bolster national resilience.Drawing on insights from scholars and military leaders, the book examines how Total Defence is understood, communicated and implemented across the region. Through detailed case studies, it reveals the shared objectives and distinct national models that influence defence policy.The book shows how cross-border cooperation and community-based defence efforts are creating a unified operational space in the Greater Baltic Region. Offering valuable lessons for countries facing similar security challenges, it also contributes to broader discussions on NATO’s evolving role in regional defence.

This Open Access book examines how Estonia, Latvia, Lithuania and Poland have adjusted their security strategies in response to increasing geopolitical threats. Moving beyond traditional deterrence, these states have adopted a Total Defence approach as an inclusive strategy that unites the military and civilian sectors to bolster national resilience.Drawing on insights from scholars and military leaders, the book examines how Total Defence is understood, communicated and implemented across the region. Through detailed case studies, it reveals the shared objectives and distinct national models that influence defence policy.The book shows how cross-border cooperation and community-based defence efforts are creating a unified operational space in the Greater Baltic Region. Offering valuable lessons for countries facing similar security challenges, it also contributes to broader discussions on NATO’s evolving role in regional defence.