Der totale Widerstand
(Total Resistance) by Hans von Dach (German 1957) I'm still inspired reading this timeless classic on irregular warfare written by a Swiss Army officer to educate the citizens of Switzerland on how to resist what was considered possible at that time ...invasion and occupation by Warsaw Pact forces. A must read, available from sources in English.
Resistance To Tyranny
by J.P. Martino (English 2010)
Insurgents primer on armed revolt, is not as in depth on the subject as Total Resistance
but xstian Martino covers quite a bit of ground in the book. Very well organized so itz easy breezy to quickly refer to info when needed, recommended for every white revolutionary who wishes to get an overview on how to wage a successful insurgency.