The Corneliusstraße train overpass, one of Düsseldorf' many hideous underpasses, was recently stripped of its advertising hoardings, exposing squares of long-hidden posters and graffiti, including this advertisement, which appears to be for a long-ago performance of Swan Lake (Schwanensee) by the 'Ballet Classique de Paris' (extra points for anyone who can date this poster):
Just above that I spotted the words 'raus aus Vietnam' (get out of Vietnam), barely legible in light-green ink:
The first word was hard to read, but it's got to be the USA, right? The Vietnam War was, to put it mildly, not very popular in Germany (g) at least among the sort of people who paint underpasses with graffiti.
But on closer inspection, the first word turned out to be China (!):
That narrows things down. I'm sure I don't need to remind you that the last time China invaded Vietnam was in the 1788 Battle of Ngọc Hồi-Đống Đa, so this graffito is 226 years old!
Now the question is who wrote this? Perhaps a Vietnamese. But I like to think it was a member of a tiny Marxist splinter group, perhaps the Autonome Autarke Syndakilistische-Solidaristische Volksfront.