 During his years in Paris Campanella’s interest in politics and in prophecy, subjects close to his heart, resurfaced. In the two year period from 1635 to 1636 there was a remarkable blossoming of political writings, different in style and persuasive power, but sharing in common certain similar themes. Making a comparative analysis of the two great European powers, Spain and France, he shows that Spain is on the downward slope of an inexorable decline, while its adversary is in the ascendant phase of “mounting success” and, as the new superpower, is exhorted to assume the role of re-unifying the Christian flock and asserting itself as the champion of liberty against the tyranny of Spanish-Habsburg rule. There are two points in particular that most dramatically reveal the fatal decline of Spain: it has not known either how to spread Spanishness to other nations or to how to manage economy affairs effectively. While the ancient Romans were masters of gradually accumulating populations and making them participants in the empire, the Spanish, on account of their immense pride, spurn any integration whatever with other peoples. Because of their unwillingness to adopt the shrewd political tactic of mixed marriages that Campanella had suggested in the Monarchia di Spagna, an alarming demographic contraction has occurred due to the loss of soldiers in war and the infertility of women, so that the Spanish population, formerly numbering eight million, has now been reduced to half that figure. Because of the scarcity of the populace, they have have induced—and this is a very serious consequence—to destroy and depopulate the countries that they conquer in the New World. Chosen by divine providence to evangelize the entire world, the Spanish have betrayed their mission, transforming themselves into executioners and instruments of divine wrath. An even greater condemnation of Spanish politics is its disastrous economic policy. In the Monarchia di Spagna Campanella had already said that the gold of the New World had ruined the Old Word, generating greed for riches and therefore weakening the ties and solidarity between humans. In his later works he repeated the view that affluence had exacerbated social inequalities, together with the vices that derive from them.