how many extra Tornados and Attack Helicopters would we need
Bit of a 'how long is a piece of string' type of question or 'one more than in the inventory'. How ever many assets you had out there the Land Forces would always want/need more. Not knocking the Land Forces - its always been so and always will be. As soon as you put an upper limit on something it becomes the level from which the government / MOD / PJHQ starting counting backwards from in order to assess / work out the 'operational need / requirement' (or inother words 'take risk').