Marie Antoinette the king denouncing the queen's role in these matters, urged by the queen, Louis XVI disbanded the government, thus losing his majority in the Assembly. Dumouriez resigned and refused a post in any new government. At this point, the tide against royal authority intensified in the population and political parties, while Marie Antoinette encouraged the king to veto the new laws voted by the Legislative Assembly in 1792. In August 1791, the Declaration of Pillnitz threatened an invasion of France. This led in turn to a French declaration of war in April 1792, which led to the French Revolutionary Wars
Marie Antoinette contested in the libelles. In the middle of the queen's pregnancy two events occurred which had profound impact on her later life: the return of her friend, the Swedish diplomat Count Axel von Fersen to Versailles for two years, and her brother's claim to the throne of Bavaria, contested by the Habsburg monarchy and Prussia. Marie Antoinette pleaded with her husband for the French to intercede on behalf of Austria. The Peace of Teschen, signed on 13 May 1779, ended the brief conflict, with the queen imposing French mediation at her mother's insistence and Austria's gaining a territory of at