BEIJING (AP) — Nearly three decades after Chinese leader Deng Xiaoping famously instructed his diplomats to “be good at maintaining a low profile and never claim leadership,” a new generation of rulers has made it clear that they’re ready to shed the humility and show off their country’s rising military and political power.

From Southeast Asian waters that may hold billions of barrels of oil to uninhabited islands in the East China Sea, China has stepped into territorial disputes with neighbors including Japan, South Korea and the Philippines — and in some cases, some would say, provoked them. At the same time, Beijing has pledged to build what it says will be a new security framework for Asia, replacing U.S.-dominated alliances that have defined the post-World War II period.