Beijing is stacking up its bargaining chips ahead of expected U.S.-China talks when Presidents Donald Trump and Xi Jinping visit Seoul this month, announcing new export controls to tighten its grip over high-tech manufacturing supply chains.

"The Chinese communists have adopted routine grey zone harassment tactics, combined with joint combat readiness patrols, targeted military exercises and cognitive warfare, posing a comprehensive threat to us," the defense ministry said in a report released every two years.

The move by Japan, a U.S. defense treaty ally, and Taiwan, a U.S. security partner and major purchaser of American weapons, is likely to rile China, which strongly opposes official exchanges between other countries and Taiwan, viewing the island as its territory.

Taiwan's Defense Ministry said Thursday it is training troops to shoot down unmanned aircraft that threaten or harass its soldiers,

Issued by Taiwan 's All-out Defence Mobilisation Agency, the latest edition of the handbook seeks to raise public awareness in a more "user-friendly" way. Shen Wei-chih, the Agency's Director, said since the outbreak of the Russia - Ukraine war, officials have felt much more information needs to be added to the document.

Beijing is stacking up its bargaining chips ahead of expected U.S.-China talks when Presidents Donald Trump and Xi Jinping visit South Korea's Gyeongju, announcing new export controls to tighten its grip over high-tech manufacturing supply chains.

Experts warn that new Chinese weapon systems are aimed at countering Taiwan's asymmetric warfare strategy amid ongoing geopolitical tensions.

Today, as the Chinese military increases its presence in the Taiwan Strait and the South China Sea and as U.S.-Chinese tensions simmer from trade to technology, U.S. officials are more focused on confidence-building measures,