The mercenaries arrived in Corsica on the 10th of August 1731; not all however, but in the first instance, only four thousand men—a number which the Senate hoped would prove sufficient for its purposes. This body of Germans was under the command of General Wachtendonk. They had scarcely landed when they attacked the Corsicans, and compelled them to raise the siege of Bastia.

The Corsicans saw the Emperor himself interfering as their oppressor, with grief and consternation. They were in want of the merest necessaries. In their utter poverty they had neither weapons, nor clothing, nor shoes. They ran to battle bareheaded and barefoot. To what side were they to turn for aid? Beyond the bounds of their own island they could reckon on none but their banished countrymen. It was resolved, therefore, at one of the diets, to summon these home, and the following invitation was directed to them:—

"Countrymen! our exertions to obtain the removal of our grievances have proved fruitless, and we have determined to free ourselves by force of arms—all hesitation is at an end. Either we shall rise from the shameful and humiliating prostration into which we have sunk, or we know how to die and drown our sufferings and our chains in blood. If no prince is found, who, moved by the narrative of our misfortunes, will listen to our complaints and protect us from our oppressors, there is still an Almighty God, and we stand armed in the name and for the defence of our country. Hasten to us, children of Corsica! whom exile keeps at a distance from our shores, to fight by the side of your brethren, to conquer or die! Let nothing hold you back—take your arms and come. Your country calls you, and offers you a grave and immortality!"

They came from Tuscany, from Rome, from Naples, from Marseilles. Not a day passed but parties of them landed at some port or another, and those who were not able to bear arms sent what they could in money and weapons. One of these returning patriots, Filician Leoni of Balagna, hitherto a captain in the Neapolitan service, landed near San Fiorenzo, just as his father was passing with a troop to assault the tower of Nonza. Father and son embraced each other weeping. The old man then said: "My son, it is well that you have come; go in my stead, and take the tower from the Genoese." The son instantly put himself at the head of the troop; the father awaited the issue. Leoni took the tower of Nonza, but a ball stretched the young soldier on the earth. A messenger brought the mournful intelligence to his father. The old man saw him approaching, and asked him how matters stood. "Not well," cried the messenger; "your son has fallen!" "Nonza is taken?" "It is taken." "Well, then," cried the old man, "evviva Corsica!"

Camillo Doria was in the meantime ravaging the country and destroying the villages; General Wachtendonk had led his men into the interior to reduce the province of Balagna. The Corsicans, however, after inflicting severe losses on him, surrounded him in the mountains near San Pellegrino. The imperial general could neither retreat nor advance, and was, in fact, lost. Some voices loudly advised that these foreigners should be cut down to a man. But the wise Giafferi was unwilling to rouse the wrath of the Emperor against his poor country, and permitted Wachtendonk and his army to return unharmed to Bastia, only exacting the condition, that the General should endeavour to gain Charles VI.'s ear for the Corsican grievances. Wachtendonk gave his word of honour for this—astonished at the magnanimity of men whom he had come to crush as a wild horde of rebels. A cessation of hostilities for two months was agreed on. The grievances of the Corsicans were formally drawn up and sent to Vienna; but before an answer returned, the truce had expired, and the war commenced anew.

The second half of the imperial auxiliaries was now sent to the island; but the bold Corsicans were again victorious in several engagements; and on the 2d of February 1732, they defeated and almost annihilated the Germans under Doria and De Vins, in the bloody battle of Calenzana. The terrified Republic hereupon begged the Emperor to send four thousand men more. But the world was beginning to manifest a lively sympathy for the brave people who, utterly deserted and destitute of aid, found in their patriotism alone, resources which enabled them so gloriously to withstand such formidable opposition.

The new imperial troops were commanded by Ludwig, Prince of Würtemberg, a celebrated general. He forthwith proclaimed an amnesty under the condition that the people should lay down their arms, and submit to Genoa. But the Corsicans would have nothing to do with conditions of this kind. Würtemberg, therefore, the Prince of Culmbach, Generals Wachtendonk, Schmettau, and Waldstein, advanced into the country according to a plan of combined operation, while the Corsicans withdrew into the mountains, to harass the enemy by a guerilla warfare. Suddenly the reply of the imperial court to the Corsican representation of grievances arrived, conveying orders to the Prince of Würtemberg to proceed as leniently as possible with the people, as the Emperor now saw that they had been wronged.

On the 11th of May 1732, a peace was concluded at Corte on the following terms—1. General amnesty. 2. That Genoa should relinquish all claims of compensation for the expenses of the war. 3. The remission of all unpaid taxes. 4. That the Corsicans should have free access to all offices, civil, military, and ecclesiastical. 5. Permission to found colleges, and unrestricted liberty to teach therein. 6. Reinstatement of the Council of Twelve, and of the Council of Six, with the privilege of an Oratore. 7. The right of defence for accused persons. 8. The appointment of a Board to take cognizance of the offences of public officials.

The fulfilment of this—for the Corsicans—advantageous treaty, was to be personally guaranteed by the Emperor; and accordingly, most of the German troops left the island, after more than three thousand of their number had found a grave in Corsica. Only Wachtendonk remained some time longer to see the terms of the agreement carried into effect.