We have categorised transformations into displacive and reconstructive, with the former being strain dominated and the latter diffusion dominated. Displacive transformations are also known as military transformations by analogy to a queue of solidiers boarding a bus. The soliders board the bus in a disciplined manner such that there is a defined correspondence between their positions in the bus and those in the queue. Near neighbours remain so on boarding. There is thus no diffusional mixing and no composition change. Because the soldiers are forced to sit in particular positions, there will be a lot of strain energy and this is not an equilibrium scenario.