I apologize for the confusion in my previous response. The correct answer is:
The French were supplying arms on the Ho Chi Minh Trail.
The Geneva Accords were a set of agreements reached in 1954 that temporarily divided Vietnam into North and South, with the intention of reunification through democratic elections. However, the French and Ho Chi Minh's forces were unable to reach a long-term political settlement, leading to escalating tensions and ultimately the outbreak of war. The French, who had colonized Vietnam, were unwilling to fully support Ho Chi Minh's nationalist and communist forces, leading to conflict over control of the country. Additionally, the French were supplying arms on the Ho Chi Minh Trail, further exacerbating hostilities between the two sides. Ultimately, the failure of diplomatic discussions and the breakdown of the Geneva Accords contributed to the outbreak of war between the French and Ho Chi Minh.
