How did the British invasions of 1806 and 1807 affect Argentine nationalism?

The British invasions of 1806 and 1807 were pivotal in the development of Argentine nationalism. When local militia forces successfully repelled the British troops in the battles known as the Reconquista and the Defensa, it marked the initial episode in the history of the independence movement.123

These events significantly boosted the independent spirit of Buenos Aires. Because the local Creole population successfully defended the city while the viceroy fled, they gained newfound confidence in their own ability to govern and protect themselves. This experience demonstrated that the colonists could act independently of the Spanish crown, effectively undermining the authority of the Viceroyalty of the Río de la Plata. By 1810, this growing sense of autonomy led the Creoles to establish a provisional junta, ultimately launching the formal movement for independence.4