John Moore:

I have no idea why it matters, but I served in Armored Units ’76 – ’80 and we spoke of distances/ranges in metric. A “klick” (no idea where the term came from) was, as you say, a kilometer. We ran PT, of course, according the “english” system.

BTW, I have this little theory that the metric system is one of several reasons Euros are going brain-dead. Units of measure have no bearing on anything – they are nothing more than units of measure. Doing nothing more than moving decimal points back and forth, however, is conducive to self-imposed idiocy. Divide/multiply by 2s, 4s, 8s, and 16s, however, and your brain will stay reasonably healthy. One of several reasons for Moonbatism is the Metricism. Can anybody name a musical piece (worthwhile or otherwise) scored in metric?