To protect French citizens living in Algeria the French took Algeria from the natives.
To protect Algeria the French took control for Tunisia.
To protect Senegal the French took Dahomey, the Gabon, and the Congo.
To protect the isle of Reunion the French took Madagascar.
They took Madagascar for another reason.
The other reason was that the English wished to take it.
When the English take something the French say: “The English do that because they are grabbers.”
When the French take something, the French say: “We do that because we are good patriots.”