I believe the answer you’re looking for are (Slavs)-who are an ethnic group that is dispersed across Europe with large concentrations in eastern countries like Bulgaria and Russia.
his speech, he talked about a third alternative, he said if only British government were able to form alliances among countries against Germany and if they are able to strengthen air force and British Army, only then they could have prevented Germany from taking Sudetenland. He believed that Germany will continue to expand its territories eyeing in Western Europe and British territories are not exempted.
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