Mortars...
BTW Curly did you come qacross that side because you wewre Googling for "Bush?"
From your link?
"The destruction of a new threat type once again demonstrates the capability of the MTHEL testbed," said Wes Bush, president of Northrop Grumman's Space Technology sector. "We are excited about the historic accomplishments and we are fully prepared to move to the next stage of building the MTHEL prototype."