The MSCA4Ukraine scheme will provide support to displaced researchers from Ukraine through dedicated fellowships to enable them to continue their work in safety, and to facilitate their reintegration into Ukraine if conditions for safe return are met. In so doing, the scheme will contribute to sustaining the Ukrainian academic and research sector in the face of the Russian Federation’s invasion, help to combat permanent brain drain, and facilitate the continued functioning of the sector in collaboration and exchange with the international research community. In implementing the MSCA4Ukraine scheme the project partners will draw heavily on their organisations’ extensive expertise and experience in (1) implementing fellowship schemes for researchers at risk and/or schemes for all researchers, (2) advising and matchmaking between researchers at risk and host institutions, and (3) leveraging and mobilising vast Europe-wide and global networks to act in support of researchers at risk and to promote higher education values, including academic freedom. The MSCA4Ukraine scheme will consider excellence and good practice in fostering research and supporting researchers, as demonstrated in the MSCA, and in fellowship programmes offered by the Alexander von Humboldt Foundation, in full consideration of the exceptional conditions that researchers from Ukraine face. Awards and selection procedures will be fit-for-purpose and inclusive, enabling all qualified researchers from Ukraine to apply.