The army, navy, air force and rocket force have been dispatched for the drills which include live-fire exercises, the Chinese military said. Codenamed "Justice Mission 2025", the drills are taking place days after the US announced the sale of one of its largest weapons packages to Taiwan worth $11bn (£8.2bn). That move drew sharp protest from Beijing which in turn sanctioned US defence firms. Taiwan's push to ramp up its defence this year has also angered Beijing, which claims the self-ruled island as its territory.

Taiwan's presidential office has criticised the upcoming Chinese drills, calling them a challenge to international norms. Taiwan's defence ministry said that they detected Chinese aircraft and ships around Taiwan on Monday morning, and have deployed their own forces and missile systems to monitor the situation. Its forces are on "high alert" to defend Taiwan and "protect our people", the ministry said.

In a post on Weibo, the Chinese military's Eastern Theater Command - in charge of the Taiwan Strait - described the upcoming military exercise as a "shield of justice". "All those plotting independence will be annihilated upon encountering the shield!" the post read. While some initial drills have begun, the military said it would conduct a major exercise from 08:00 to 18:00 local time on Tuesday. While China has long called for the "peaceful reunification" with Taiwan, it also has a law stating it will resort to "non-peaceful means" to prevent the island's "secession". Beijing has accused Taiwan's president Lai Ching-te of pursuing "Taiwan independence". The president maintains Taiwan is already a sovereign nation and therefore has no need to formally declare independence. (BBC)