As the U.S. struggles to keep up with China’s growing maritime might, lawmakers in Washington are exploring ways to address the country’s shipbuilding constraints, including adopting Japan’s method of producing a set number of submarines every year.

As the U.S. struggles to keep up with China’s growing maritime might, lawmakers in Washington are exploring ways to address the country’s shipbuilding constraints, including adopting Japan’s method of producing a set number of submarines every year.