Subject: how does red mercury fusion work? why would uranium 238 be mixed with rm

Im stationed in Iraq and if somebody found a glass tube with a small amount of 
uranium 238 one one side seperated by 5g of mercury and more uranium 238 on the 
other side of it, what would it be used for?  Is it possibly for a tactical 
nuclear pack set off by red mercury fusion?  I am hoping to know this answer as 
soon as possible.  I am a chemical operations specialist here in Iraq.  Also, 
im not sure how red mercury fusion works.  thanks.

Re: how does red mercury fusion work? why would uranium 238 be mixed with rm