The official UK military and commemorative anniversaries for 2027 include:
- Armed Forces Day: Monday, June 29
- Reserves Day: Wednesday, June 23
- 85th Anniversary of Operation Jubilee (Dieppe): August 19
- Battle of Britain Sunday: Sunday, September 19
- Trafalgar Day: Wednesday, October 13
- Remembrance Sunday: Sunday, November 14
- Armistice Day: Thursday, November 11
