(Reuters) -China vowed "resolute countermeasures" on Sunday to a recently approved U.S. arms sale to Taiwan, and complained to the U.S. for arranging for the democratically governed island's president to transit through U.

China warned the Biden administration to tread cautiously on the issue of Taiwan after President Lai Ching-te landed in Hawaii on his first stopover on US soil.

Taiwan President Lai Ching-te’s brief stop in Hawaii may have appeared understated – no formal US reception, no grand speeches – but its implications extend far beyond floral wreaths and banquets.