Pedro I invaded Portugal at the head of an army in July 1832.

Detailed to lead one of three columns that were invade Portugal, he was completely outmaneuvered.

Soult proceeded to invade Portugal in the north.

This played a major part in repulsing a large Spanish force bent on invading Portugal.

The following year he invaded Portugal, capturing the region of the Algarve.

And that happened when Spain itself later invaded Portugal.

The major Spanish objectives to invade Portugal and capture Jamaica were both failures.

From 1807 to 1811 Napoleonic French forces invaded Portugal three times.

Soult's first attempt to invade Portugal was stopped by the local militia on February 16.

The French Government is probably just waiting for a chance to invade Portugal.