[1][2] After the War of the Spanish Succession, the Treaty of Rastatt made Spain lose all possessions in Sardinia, Italy, and the Low Countries.

[1] The quick victory was mainly from the psychological action of the Marquis of San Felipe, who toured the island by encouraging the Sardinians, who were not happy with the Austrian dominion and preferred to return to Spanish rule.

However, the Austrian troops in Cagliari, commanded by Rubi, in the absence of reinforcements soon decided to flee to the north of the island, and on 4 October, the Spanish took the city.

[1] Meanwhile, in July 1718, the Spaniards, this time with 30,000 men,[2] including four regiments of Dragoons,[1] again led by the Marquis of Lede, and a fleet of 350 ships,[2] and over 250 pieces of artillery, invaded Sicily.

The attitude of Victor Amadeus II of Savoy was ambiguous, as he accepted negotiations with Spanish Prime Minister Cardinal Alberoni to form an anti-Austrian alliance.