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.

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Also if you want to help me got to

fearing kabuki could corrupt the nation’s morals, japanese government officials

explanation:

the national morals was so the japanese and the kabuki would stop fighting