Latin phrase I am trying to remember?

Using proper Latin how would one say, "Your ancestors are unworthy of battle?"

2013-03-02T06:31:59Z

.Asked not as a question but as a statement.

Newms342013-03-03T12:51:16Z

avi tui inmeriti proelio est.
Literally, your forefathers are unworthy/unmerited with respect to battle.