Here's a link to a good piece from the always interesting BBC News Magazine on the way wars have led to the creation of new words or adaptation of older ones. It's not so long ago that a "tank" was something you kept water in, rather than a large metal thing with a big cannon.
This could be handy for anyone looking at the ways in which social change and historical events have affected language change, and also help any AQA A spec teachers preparing for next year's new spec with its focus on Investigating Representations.
ENA5 - Language Change
ENGA2 (from 2008) - Investigating Representations