China & Taiwan Update, March 1, 2026

(Institute for the Study of War)

PLA Nuclear Submarine Development: The PLAN may be preparing to launch a new type of guided missile nuclear submarine (SSGN). This submarine would improve PLAN undersea warfare capabilities and enhance the PLAN’s ability to restrict the movements of enemy surface fleets in the western Pacific during a Taiwan contingency.
US Tariffs: The Supreme Court ruled that the president cannot levy tariffs under the International Emergency Economic Powers Act (IEEPA), a law the Trump administration has invoked extensively since April 2025 to impose tariffs without Congressional approval on many countries, including Taiwan and the PRC.

China & Taiwan Update, March 2, 2026 | ISW