So, you're asking about the recent plane crash involving a Black Hawk helicopter. Unfortunately, it was a pretty devastating incident that resulted in the loss of nine soldiers' lives. From what I've gathered, two Black Hawk helicopters collided in mid-air during a nighttime training exercise near Fort Campbell, Kentucky ¹. The crash is being investigated, and it's still unclear what caused the collision, but it's being looked into by the Army's aviation investigation authority.

It's worth noting that this isn't the first time a Black Hawk helicopter has been involved in a fatal crash. In fact, there have been several incidents in the past, including one in 1988 that killed 17 soldiers ². The Black Hawk has been in service since 1979 and is widely used by the US military, so it's not surprising that there have been some accidents over the years.

The recent crash has raised some concerns about the safety of the Black Hawk helicopter, but it's also important to remember that these incidents are still relatively rare