This chapter assesses the effects of migratory flows from the Moldova Republic and Ukraine towards Romania, especially after the 2009 adoption of the Easter Partnership. It focuses on the potential of these flows to influence the resilience and increase the territorial social and economic capital of the areas where they settle. Our research focuses on the contribution of immigrants to the territorial capital, especially in moments of crisis. Three categories of resilience were taken into account: socio-demographic (the input of the young population, including children, able to regulate the general balance of the population and, in particular, the demographic ageing indicators), economic (through the input of the labour force, especially in areas that have a deficit in this regard), and institutional (related to the capacity of public authorities to integrate the input related to foreign immigration). We differentiate between temporary and permanent migrants, the latter being able to contribute to improving the territorial capital in the insertion areas. Using statistical data that comprehensively covers the last decades, we used multiple correlations to create spatial typologies to illustrate the clusters with similar behaviour concerning the recent presence of significant migratory flows. Even though the available data are not always sufficient or reliable, the analysis at regional and local levels made possible some very insightful conclusions. Overall, the study is a comprehensive assessment of the potential role of migratory flows in creating new socio-economic connections and diversifying and shaping territorial capital and resilience capacity.