Operation Stirling
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STIRLING 2027
STIRLING runs October 7–11, 2027 in Pisgah National Forest, North Carolina. It is a five day series of progressive loaded marches modeled on the Aptitude phase of UK Special Forces Selection. The event covers about 76 miles in total and requires candidates to carry increasing dry loads from 25 to 50 lbs.
Progression is conditional. Candidates must complete Days 1–4 within the required standard to earn a place on Day 5. The final Test Route is a timed 26 mile effort under 50 lbs that continues into darkness; only those who complete it receive the STIRLING Dog Tag.
The format mixes physical timed marches with additional assessments including written work on special forces history and current affairs, reduced recovery time, and limited sleep. Navigation uses five AllTrails routes that must be downloaded for offline use. Candidates are solo and self sufficient on course and may not receive outside assistance unless directed by staff.
Safety and equipment rules are specified. Required dry weight must be carried in a rucksack; weighted vests and disposable items for weight are not permitted. Candidates must carry sufficient water, a minimum emergency ration, and a personal medical kit, and disclose medical conditions to GBF staff. Terrain is mountainous with sustained climbing, rocky and uneven trail, and variable October weather. Accommodation is not included. The event is limited to a maximum of 20 candidates. Visit the organization's website for the most recent information.
