台军首次实弹试射“海马斯”火箭炮，为何选在此时？

Group 1 - The Taiwanese military is set to conduct the first live-fire test of the "HIMARS" multiple launch rocket system at the Jiupeng base next week [1][3] - The "HIMARS" system was transported to the Jiupeng base, which is known for its advanced military equipment and high confidentiality [3][4] - The Taiwanese military has allocated a budget of approximately NT$32.5 billion for the procurement of 29 "HIMARS" systems, along with 84 ATACMS tactical missiles and other training equipment [3][4] Group 2 - The first batch of 11 "HIMARS" systems was secretly delivered to Taiwan in October of last year, with 16 ATACMS missiles delivered in January [4] - The ATACMS missiles have a range of 300 kilometers, enhancing Taiwan's capability for "counter-strike" operations [4] - The live-fire test coincides with U.S.-Philippines joint military exercises, indicating Taiwan's intent to demonstrate its capabilities in controlling key maritime routes [5]