BRUSSELS (AP) – NATO leaders have declared that China poses a constant security challenge and is working to undermine global order. And they say they’re worried about how fast the Chinese are developing nuclear missiles. It’s a summit message in Brussels on Monday in sync with President Joe Biden’s efforts to get allies to speak out with a more unified voice against China’s trade, military and human rights practices. Biden, meanwhile, reaffirmed America’s commitment to the NATO alliance that has been beleaguered during the presidency of Donald Trump.