The packaging will tie in with the “Glorious 2012”, celebrating a summer of events including the Queen’s Diamond Jubilee, London Olympics and the England football team’s participation in the European Championships.

JDO incorporated a union flag to the background of the front label to “inject national pride”, while the call to action Keep Calm and Celebrate sits on the neck label together with an iconic Spitfire plane.

Paul Drake, JDO’s creative director, said: “With all the excitement this summer and the wave of patriotism sweeping the country, what could be more appropriate than celebrating Spitfire, an authentic British brand.”

Mark Miller, Shepherd Neame marketing manager, added: “With this fantastic new design, JDO have enabled us to celebrate a truly great British ale alongside a year of great British Events.”

Limited edition bottles are being launched in the grocery multiples and will run throughout the summer months while the events are taking place. The campaign will be supported through social media and advertising and point of sale in the ontrade.