HONG KONG — For a second day, China's military on Tuesday dispatched air, navy and missile units to conduct joint live-fire drills around the island of Taiwan , which Beijing called a “stern warning” against separatist and “external interference” forces. Taiwan said it was placing forces on alert and called the Chinese government “the biggest destroyer of peace.” Taiwan’s aviation authority said more than 100,000 international air travelers would be affected by flight cancellations or diversions. The two days of drills — dubbed “Justice Mission 2025” — came after Beijing expressed outrage at what could be the largest-ever U.S. arms sale to the self-ruled territory, and at a statement by Japan’s prime minister , Sanae Takaichi, saying its military could get involved if China takes action against Taiwan. China says Taiwan must come under its rule. China's military did not mention the United States and Japan in its statement on Monday, but Beijing's foreign ministry accused Taiwan's ruling party of trying to seek independence through requesting U.S. support. And o