We don't know, but it is inferred that the U.S. sub was sunk by the Russians in U.S. territorial waters. How many Americans died? The news media (including Fox) is totally silent about this, other than Fox News said on Tuesday that Vice-President Mike Pence canceled a speaking trip and headed back to Washington because of an "emergency".
Neil
P.S. Just think what life would have been like say in Scotland in 1300 AD. We would have simply herded sheep for 70 or 80 years (maybe much less), and then we would have died. It shoo is exciting living late in these End Times as we approach the Rapture! You had better have your ticket to the Rapture------ must know Israel's Messiah Who is Jesus, and DON'T be lukewarm about the Lord! Jesus is the ONLY way to eternal life for all of us Jewish folks and everyone else too! There is no other way! The Bible is very clear about that in both the OLD and New Testaments!
P.P.S. Sadly I have many Jewish friends who will not take heed, and they will be here for the terrifying 7 year Tribulation Period that will begin with the coming FALSE Middle East peace shortly after the Rapture. Is Jesus actually our long rejected JEWISH Messiah? Go look up in the Old Testament------- Micah 5:2, Psalm 22:14-18, and all of Isaiah 53! Shoo nuff, the One we have rejected for nearly 2000 years is indeed our Messiah! Want eternal life after this mortal life is over? Then you had better come to know Him! The alternative (and there is only one) is extremely unpleasant for eternity!