Résumé : The literature on external voting overlooks why some political parties campaign abroad while others remain focused on the national territory. This article investigates the determinants of the strategic entry of political parties in overseas districts through analysing legislative elections in Ecuador (2007–2017). Based on a study of the incentives and constraints of political party presence abroad, we find that parties are more likely to compete for elections in overseas districts displaying a weaker party competition as well as when they account for previous electoral experience in these districts.