Which country did Namikaze Minato save?

According to the query of Youku Video APP, Thunder Land learned that the wave Feng Shui Gate in Naruto saved Uzumaki Kushina from Thunder Land. Three ninjas from Yunyin Village ambushed Jiusinai's home, and Jiusinai was kidnapped after coming home from school. Fortunately, Watergate found it in time and successfully rescued Jiu Sinai. This cartoon tells the story of a powerful monster, Kyubi no Youko Fox, who attacked Konoha Ninja Village ten years ago. The fourth generation of Naruto tried their best to seal Kyubi no Youko Fox on the newborn Naruto at the cost of their own lives.