Taiwan's military is under pressure to swap its decades-old towed artillery for modern truck-mounted guns — bad news for the current arsenal, but a push toward a more survivable force.

• The Swedish-made Archer system can roll up, fire, and drive away in about 20 seconds, making it very hard to hit back.
• Taiwan still leans on old, slow-moving artillery that has to stay in place, an easy target for Chinese missiles and drones.
• Speed matters most on a small island where there is nowhere to retreat and counter-fire arrives fast.
• Ukraine has already shown that shoot-and-move guns survive while fixed positions get destroyed.

Outlook: Expect continued pressure on Taipei to buy or build fast, mobile artillery as the threat from China grows.