What city does Charles de Gaulle insist needs to be liberated?

The answer to your question is, Strasbourg.

Here is some additional information in case if you need it:

Alsace, of which Strasbourg is the capital, had been the focus of French-German enmity since the Franco-Prussian War of 1870–71, and General Charles de Gaulle insisted that only French forces should retake it.

Have a wonderful day!

Also if you want to help me got to

i belive the classic sword and a shield would do

hi there!

c is your answer

~courtney