"If the conflict does go on for another six months to another year, it certainly continues to stress the supply chain in ways that are challenging," Del Toro said on Wednesday.
The Defense Department has been working very closely with the US arms defense industry to identify their challenges as they aim to increase their own production rates, he said.
Del Toro noted that some progress has been achieved in the effort to identify challenges and increase production rates.
The US defense industrial base needs to invest in its workforce and capital investments in order to increase their production rates, he said.
However, Del Toro also said that the progress to increase production rates will vary among each weapon system.