Major is a rank that is given for a mid-level command officer (higher than the rank of Captain and lower than the rank of Lieutenant Colonel). In Canada, it is shown by a thick bar followed by a thin bar and again by a thick bar. In Great Britain it is represented by a single crown. In the United States, it is shown by a gold oak leaf.
- CDN-Air Force-Major (OF3)-2015.svg
Canadian Air Force major insignia
- World War I British Army major's rank insignia (sleeve, general pattern).png
World War I British Army major's rank insignia (sleeve, general pattern)
- US-O4 insignia.svg
Major rank insignia for the United States Army, Air Force, and Marine Corps