 Portugal, particularly Lisbon, was one of the last European exit points to the US, and a huge number of refugees found shelter in Portugal.Siding with the Axis would have meant that Portugal would have been at war with the United Kingdom, which would have threatened Portuguese Asian and African colonies, while siding with the Allies might prove to be a threat to Portugal itself, resulting in unrestricted submarine warfare and possibly even invasion if the pro-German Spain had joined the Axis.Portugal continued to export tungsten and other goods to both the Axis (partly via Switzerland) and Allied countries.