CIMSEC – Multinational naval exercises occur frequently across the globe. They are effective confidence-building mechanisms that promote integration, cooperation, and trust while improving the participating personnel’s capabilities and expertise. The most prominent naval exercises in the Western Hemisphere are the US-sponsored UNITAS, SOLIDAREX, and TRADEWINDS. However, naval exercises do not solely occur at sea but also occur in inland bodies of water. Enter the multinational riverine exercise BRACOLPER, which, as the name suggests, brings together the navies from Brazil, Colombia, and Peru.