Brazil is a maritime nation by nature: it is the largest nation in the South Atlantic; it possesses the most extensive coastline and topography conductive to establishing suitable ports; 80% of its population resides in coastal areas; 95% of its foreign trade is carried out by sea; it is situated on the eastern salient of South America -specifically at the narrowest point of the Atlantic, closest to Africa (the Natal-Dakar route)- and possesses an immense economic potential (not yet fully quantified) regarding mineral and energy resources within its Exclusive Economic Zone. According to De Castro (1998: 44), “Brazil was born from the sea and in the sea, and its manifest destiny dictates that it must live from the sea; therefore, it cannot turn its back on it.” Thus, the most critical mission of the Brazilian navy remains “sea denial”, ensuring control and freedom of navigation, and promoting responsible maritime development (Silva & Moura, 2016). The Brazilian economy has a maritime dimension, if we focus on those sectors directly linked to the sea, as well as a range of activities related to the sea, that is, those indirectly influenced by the Atlantic Ocean. These activities generate economic linkages and multiplier effects, such as the marine manufacturing industry, marine biological and fishery resources, and maritime transport (cf. Carvalho, 2018). This text analyses the state policies supporting the tasks of the Brazilian Navy in protecting natural resources of a marine nature.