Perhaps befitting a battle that ended French hegemony in Europe, Paris, it seems, has been outflanked once again.

After it objected to a decision in March by Belgium to introduce a new 2 euro coin to commemorate the 200th anniversary of Napoleon’s defeat at Waterloo, the Belgians retreated, scrapping 180,000 coins they had already minted.

But victory for France is proving elusive.

This week, Belgium decided to circumvent French resistance by invoking a little-known European Union rule that allows countries to issue euro coins of their choice, provided they are in an irregular denomination.