Even though the city of San Miguel de Tucumán was located in a peripheral, mountain and remote geography, the wars of independence, and particularly the cantonment of the Ejército Auxiliar del Perú, revitalized its territory and reinforced their integration into the political-military circuits of what we may call Atlantic networks. This city, that had been a battlefield (1812) but also the main quartering site of that army between 1812 and 1819, doubled its population and underwent transformations derived from the arrival of hundreds of officers and troops, with the consequent technical changes derived from the need to build hospitals, fortifications, military factories and other ways of supplying the new arrivals. Understood at the time as an army of porteños, regarding the origin of the majority of its officers and sub-officialdom, however, a small but significant part of the officers were European, who brought with them the technical knowledge learned during their passage through the Napoleonic Wars. The objective of the article is to analyze the atlantic network created by the arrival of political and military officers such as the French Philippe Bertrés (1786-1856), Enrique Paillardell (1785-1815), Jean Joseph D’Auxion de La Vayesse (1775-1829), the Austrian Baron Holmberg (1778-1853), and the Italian Emilio Salvigni (1789-1866), all of them officers that brought specific knowledge (military techniques, mathematics, agronomy) that contributed to their integration into local networks.