Final answer:
Rapprochement with France ended with the Treaty of Mortefontaine in 1800 after the Quasi-War and again after World War II when Japanese forces disarmed the French in Vietnam, leading to Vietnam's declaration to sever colonial ties with France.
Step-by-step explanation:
The rapprochement with France effectively came to an end during two key historical events. Initially, it concluded in the year 1800 with the Treaty of Mortefontaine, which signified the end of the Quasi-War between the United States and France. President John Adams facilitated the treaty that not only reopened trade but also marked an end to French privateering activities against American shipping. The treaty faced opposition within the Federalist Party but ultimately passed, signaling a temporary period of peaceful relations.
Likewise, centuries later, the end of French colonial control over Vietnam was marked on March 9, 1945, when Japanese forces disarmed French troops, leading to a declaration by the Vietnamese Provisional Government that all colonial relations with France were severed. This was due in large part to French failures to protect Vietnamese interests and repeated cessions of control to Japanese power, culminating in the ousting of French influence in the region post-World War II.
In both instances, the rapprochement came to an end due to changing political landscapes, strategic failures, and in the latter case, a distinct push for national sovereignty from colonial rule.