this post contains affiliate links, using them keeps me stoked
I have instructed thousands of students on the art and science of land navigation. There exists within those who fail to perform the tasks to standard a tendency to blame their compass.
Determining compass error is a straight forward and easy task you can perform before stepping off. In this video, I’ll demonstrate how to do it and put the Cammenga, Suunto, Silva, Brunton, and TurnOnSport to the test to see if one is inherently better than another.

SHTF Field Manual
The SHTF Field Manual is your guide to plan, prepare, execute, and assess operations in a contested environment. From convoy operations, patrolling, defensive operations, tracking, counter tracking, and evasion principles. Offered only in a pdf format, 143 pages.