TOKYO -- Prime Minister Fumio Kishida gingerly climbed atop a Type 10 battle tank, paused to catch his breath, and haltingly eased himself into his seat.

Asia's military expenditure has surged more than 50% in the last decade, with China leading the pack. But will that spending result in actual conflict? © Illustration by Daniel Garcia
The region's biggest players are shelling out on defense at an alarming rate. Is war on the horizon?