The daredevils performed an array of jaw-dropping moves to thrill onlookers.
There were also military parades, live music and displays throughout the day as well as lots of stalls and entertainment. A Royal Navy parachute drop was another highlight of this fantastic event.
See pictures below of the Red Arrows display from the event:
1. Red Arrows. Portsmouth's Armed Forces Day, Southsea Common
Red Arrows. Portsmouth's Armed Forces Day, Southsea Common Picture: Chris Moorhouse (080624-53)Photo: Chris Moorhouse
2. Red Arrows. Portsmouth's Armed Forces Day
Red Arrows. Portsmouth's Armed Forces Day, Southsea Common Picture: Chris Moorhouse (080624-57)Photo: Chris Moorhouse
3. Red Arrows. Portsmouth's Armed Forces Day
Red Arrows. Portsmouth's Armed Forces Day, Southsea Common Picture: Chris Moorhouse (080624-55)Photo: Chris Moorhouse
4. Red Arrows. Portsmouth's Armed Forces Day
Red Arrows. Portsmouth's Armed Forces Day, Southsea Common Picture: Chris Moorhouse (080624-52)Photo: Chris Moorhouse