The escalating territorial disputes in the Pacific between China and America’s allies create an ever-more-urgent need for U.S. sea power. But even as China rapidly expands and modernizes its navy, the Trump administration has not proposed enough funds to maintain America’s maritime advantage. Beginning with the coming 2019 federal budget, the president and Congress must commit to funding a full, modern fleet—or risk ceding essential U.S. and allied interests.
American sea power has secured the Pacific since the end of World...