Without affecting humanitarian assistance, development actors will work in a complementary manner to humanitarian assistance interventions to ensure that the impact of a large refugee situation on a host country is taken into account in the planning and implementation of development programmes and policies with direct benefits for both host communities and refugees. A spirit of partnership, the primacy of country leadership and ownership, and the mobilization of predictable international responses consistent with national development strategies and aligned with the 2030 Agenda for Sustainable Development, are key to ensuring sustainability. At the same time, host countries need to be able to rely on additional development resources to ensure that communities affected by a refugee situation are not impaired in making progress towards the Sustainable Development Goals.