The United States received approval from Taiwan’s Ministry of National Defense earlier this week to provide maintenance services to the island nation’s fighter aircraft fleet in a deal worth 12.84 billion New Taiwan dollars ($419 million).

Through the American Institute in Taiwan, Taipei signed the appropriation, allocating about NT$9.9 billion ($323 million) for spare parts and the remaining NT$2.94 billion ($95.9 million) for nonstandard components and aviation materials, the ministry said via public contract notice.

The spare parts contract will occur until March 2028, while the rest will run through June 2027.

Taiwan’s Air Force has recently mobilized its fighter jets more than ever to fend off China’s increasing military incursion into the island nation’s surrounding waters and over its air defense identification zone (ADIZ).