France as an (emerging) nation state did not exist before the 16th century, so every (alleged) invasion on this list attributed to France before this time line, is nonsensical.
Dr Gideon Polya has a habit of pulling things out of his hat. His invasion list of the US was just as absurd.
Have a look at the first lines of his run-down.
"Huguenot Massacres" - not an invasion, civil fighting between Catholics and Protestants.
"French Revolution Reign of Terror, 1793-1794" - not an invasion, ideological terror by the state against its perceived enemies.
"Vichy French Jewish Genocide, 1941-1945" - Vichy government's role in the Holocaust can in no conceivable way be termed as an invasion. Ridiculous.
"Hundred Years War, 1337-1437" - How can this be categorized as an invasion by France?! Even if we concede that two nation states were at war - in reality it was a sequence of conflicts born out of a dynastic dispute -, still it would make no sense. French territory was repeatedly invaded, and the battles took place on French territory, not in England.....
There is no objective historiography here, just empty talk for the gullible.