歷史今天:第一次世界大戰
The Outbreak of World war I
July 28,1914 ——Austria-Hungary declares war on Serbia after Serbia rejects the conditions of an ultimatum sent by Austria on July 23 following the assassination of Archduke Francis Ferdinand.
The Outbreak of World war I
July 28,1914 ——Austria-Hungary declares war on Serbia after Serbia rejects the conditions of an ultimatum sent by Austria on July 23 following the assassination of Archduke Francis Ferdinand.