Ici est tombée
Pour la France
Le 20 août 1944
Yolande Arlette Claude
Victime de son dévouement
Here fell
For France
On August 20, 1944
Yolande Arlette Claude
A victim of her devotion
The liberation of Paris was a long battle that started in August 1944, involving the F.F.I (Forces françaises de l'intérieur), the French 2nd Armored Division under General Leclerc,
the 4th US Infantry division under General Hodges and the GermanParis garrison under
General Dietrich von Choltitz.
Nearly 5000 French people, citizens and Resistance fighters, died during the insurrection.
It started with a general strike on August 15th - first by the employees of the metro, followed by the Police and the Gendarmerie, then followed by postal workers on August 16. They were joined by workers across the city.
Wikepedia has a page on the Liberation of Paris.