Stealthy new autonomous drones are among a slew of new capabilities China is set to showcase at its huge upcoming military parade.

Naval News, a specialty outlet focused on naval technology, has identified at least two types of extra-large uncrewed underwater vehicles (XLUUVs) in photos from rehearsals for the September 3 military parade in Beijing's Tiananmen Square, which marks the 80th anniversary of Japan's World War II surrender.

And this is why this military parade—and the display of Beijing’s newest XLUUV systems—is important to keep an eye on. It isn’t only Taiwan that finds itself in the crosshairs of potential Chinese regional aggression. It could be the Philippines and Japan, too.