Final answer:
The Napoleonic Wars catalyzed the Spanish American revolutions, as creoles formed juntas and launched independence movements under leaders like Bolívar and San Martín.
Step-by-step explanation:
The Spanish American revolutions for independence gained momentum due to the Napoleonic Wars. The occupation of Spain by Napoleon's forces and the subsequent removal of the Spanish king created a power vacuum that led to the establishment of local governing bodies or juntas in the Spanish colonies. These events provided the opportunity the creoles needed to push for independence, igniting a series of uprisings across Latin America. Under leaders like Simón Bolívar and José de San Martín, revolutionary campaigns were launched, ultimately leading to the successful bids for independence for many colonies.