IUPAP, whose mission is to assist in the worldwide development of physics, to foster international cooperation, and to help in the application of physics toward solving problems of concern to humanity, has throughout its history defended the stand that no scientists should be barred from participating in conferences or events on the basis of their nationality or their affiliation. Shortly after the Russian invasion of Ukraine in February 2022, IUPAP issued a statement against the military offensive, while advocating for continued international scientific cooperation. To alleviate sanctions in science and to promote principles and policies for international scientific collaboration, IUPAP offers physicists, including students, from any country around the world, who feel excluded from academic exchange based exclusively on their affiliation and/or country of origin, to apply to use the IUPAP as their affiliation.