Invasion of Portugal (1807)
1807 invasion during the Peninsular War
French and Spanish forces invaded Portugal from 19–30 November 1807 during the Napoleonic Wars, sparking the Peninsular War. The Franco-Spanish invasion force was led by General Jean-Andoche Junot, while the Portuguese were under the nominal command of Prince Regent John, the future King John VI of Portugal. French and Spanish troops swiftly occupied the country in the face of little resistance due to the poor state of the Portuguese military.
Prior to the invasion, Napoleon had issued an ultimatum to the Portuguese government, which reluctantly acceded to most of his demands. Nevertheless, Napoleon ordered Junot to invade Portugal together with three Spanish Army divisions. Paralyzed by fear and indecision, the Portuguese authorities offered no resistance. Junot's troops occupied Lisbon on 30 November 1807, only to find that John and many of the leading families had escaped to Brazil aboard an Anglo-Portuguese fleet. The French quickly occupied the entire country and appropriated or disbanded the Portuguese Army. The following year saw the Portuguese revolt against their French occupiers, leading to the Battle of Évora in July 1808.
Background
When the Treaties of Tilsit ended the War of the Fourth Coalition, Emperor Napoleon of France had already expressed irritation that Portugal was open to trade with the United Kingdom.
“Invasion of Portugal (1807)” enters the record as 1807 invasion during the Peninsular War. Crown Archives preserves that source wording while asking what Invasion, Portugal and invasion can confirm, complicate or overturn.
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Contemporary correspondence, administrative files and participant testimony can test how later narratives organized the event or institution. The source revision retrieved here is dated Aug 23, 2026. The linked authority identifier is Q3402214. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1807 and 1808.
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