evidence: The War of the Oranges (Portuguese: Guerra das Laranjas; French: Guerre des Oranges; Spanish: Guerra de las Naranjas) was a brief conflict in 1801 in which Spanish forces, instigated by the government of France, and ultimately supported by the French military, invaded Portugal. It was a precursor to the Peninsular Wars, resulting in the Treaty of Badajoz, the loss of Portuguese territory, in particular Olivenza, as well as ultimately setting the stage for the complete invasion of the Iberian Peninsula by French forces.