page_title: Yura Fortress
hierarchical_section_title: Yura Fortress
caption_attribution_description: English: Remains of Oishiyama Bastion in Awaji-shima(island), Japan. 日本語: 生石山第一砲台の遺構。淡路島。
context_page_description: Yura Fortress was the name of a group of coastal fortifications built to guard the entrance to Osaka Bay and thus the city of Osaka from attack from the sea. These gun batteries and fortifications ceased to be used after the end of World War II.
context_section_description: Yura Fortress (由良要塞, Yura yōsai) was the name of a group of coastal fortifications built to guard the entrance to Osaka Bay and thus the city of Osaka from attack from the sea. These gun batteries and fortifications ceased to be used after the end of World War II.
caption: ruins of Oishi Battery No.1
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