The Russian ministry shared the video on Telegram on Thursday, saying that it showed the loading of an "intercontinental ballistic missile into silo launcher" in Kozelsk, a town in western Russia.Russian President Vladimir Putin and his senior officials have threatened the use of nuclear weapons throughout the war in Ukraine, but have cooled their rhetoric in recent weeks.Putin said last week that Russia had not "gone mad" about their use, and would not be the first country to use them, the BBC reported.The New York Times and CNN both reported that the US is in the final stages of the process, citing US officials, with approval potentially as early as this week.A US military official said on Tuesday that Russia is running low on modern ammunition, and may soon have to rely on decades-old ammunition, which is less reliable, The New York Times reported."