Dr Strangelove represents the whole Nazi´s movement: at the time, during Cold War and after the Second World War, despite the fact the Nazis have lost, Dr. Strangelove is a personification that tell us that Nazi ideas are "paralyzed" (on a wheelchair), but not dead.
His plan about the future of mankind are the same as the Nazi plans, for example, when he said that a computer could select the "perfect" men and women to go to the mines.
Dr Strangelove can´t handle his right arm in a representation of his inner battle to try to hide his past and convictions, but he fails all the time (another example is when he accidentally calls the american president as Mein Fuhrer)
After having a erection while explaining the sacrifice that men would have to do to procreate with 10 women each he comes to the final memorable line.
He is so excited because he sees that his plans are being well accepted by the americans and he stands up saying "Sir, i have a plan" and then he realizes the miracle: "Mein Fuhrer, i can walk" means that the Nazi ideas are standing up again and can walk over the world.
Amazing movie, script and performances.