Military history of Spain Portugal and engage French forces on the frontiers while Spanish "guerrilleros" wore down the occupiers. Acting in concert, regular and irregular allied forces prevented Napoleon's marshals from subduing the rebellious Spanish provinces. The Spanish navy, put to sea in support of France during the War of the Third Coalition in 1805, suffered terrible losses at the Battle of Trafalgar, having been weakened by yellow fever in the preceding years; in many ways this marked the nadir of Spanish naval history. The events in mainland Spain had extensive consequences for her empire. Spain's colonies in the Americas had shown an increasing
Naval warfare in the Mediterranean during World War I Barrage, an Allied naval blockade of the Strait of Otranto. The raid was a partial success but the raiders were nearly destroyed by a shell hit which knocked out an engine on the Austrian cruiser . With heavier Allied forces closing in, the Austrians returned to Pola. The Austrians then decided to raid patrol boats guarding the Otranto Straits between Italy, Corfu and Albania. For further details see the battle of the Otranto Barrage. Allied fleets also played a role in coercing the Greek government to join the Allies and later supply the campaigns in Palestine and Macedonia. Although Germany