H.R. 7934 is like a rule that says the Army can't spend more than half its money on outside helpers for some jobs at their special work places, called arsenals. The rest of the work has to be done by the Army's own people, but there are some exceptions if it's really important for the country's safety.

S. 4092 is like a rule saying that more work for making things for the Army should be done by Army workers, not by other companies, and it's important to use special Army places for this work. If it's really needed to keep everyone safe, they can use other companies, but they need to be careful and tell everyone why.