It's been 200 years since the Napoleon's army tried to invade Russia. There is an interesting map which shows how big the army was at selected points of the invasion.
As the map shows, Lithuanian cities were the last before the army started shrinking. In fact, Lithuania and Poland supported the French army because Russia was an enemy to them as well - and this was a direct consequence of the fall of the Polish-Lithuanian Commonwealth in 1795. This army was disbanded in Vilnius.
Here is a funny read from lrytas.lt about two Belgians who tried to repeat this trip on feet this year. Enjoy ;)