China launched its most extensive war games around Taiwan on Monday to showcase Beijing’s ability to cut off the island from outside support in a conflict, testing Taipei’s resolve to defend itself and its arsenal of U.S.-made weapons.

The Eastern Theatre Command said it had deployed troops, warships, fighter jets and artillery for its “Justice Mission 2025” exercises to encircle the democratically governed island, conduct live fire and simulated strikes on land and sea targets, and drills to blockade Taiwan’s main ports.

The live-firing exercises will continue on Tuesday across a record seven zones designated by China’s Maritime Safety Administration, making the drills the largest to date by total coverage and in areas closer to Taiwan than previous exercises. The military had initially said artillery firing would be confined to five zones.