The "20 Mile March" is a concept introduced by Jim Collins in his book, "Great by Choice." It refers to the disciplined approach of setting a consistent, achievable goal—marching 20 miles each day—regardless of external circumstances. This strategy emphasizes the importance of steady progress over time, rather than sporadic bursts of effort. Organizations that adopt the 20 Mile March principle focus on maintaining a sustainable pace, which helps them navigate challenges and uncertainties. By committing to their goals, they build resilience and ensure long-term success, even in unpredictable environments.