Germany's armed forces are to be revamped. Compulsory military service will be discontinued. Troop numbers will be lowered from 250,000 to around 180,000.The military leadership will also be restructured and downsized. These are just some of the most far-reaching reforms the German military has ever seen. We take a look at the changes and the driving force behind them, defense minister Karl-Theodor zu Guttenberg.