240mm Nuclear Field Artillery Unit created by the US Army in the 50's.
This Artillery Unit was capable of firing an atomic shell 29 kilometers.
The Atomic Annie weighed 68 tonnes, and was transported by twin
semi-trucks, one attached to each end of the gun carriage.

What does the song "Did Not Set Suicide Flag" mean?
Answer: Well it has nothing to do with Suicide, it is an Active Directory Migration Error here is a screen shot of what it looks like LINK.