The Chronoliths - part 1

Software designer Scott Warden is living with his family in early twenty-first century Thailand after his latest contract has ended. He and his friend Hitch Paley are among the first to find an enormous monolith which appears out of nowhere in the jungle. On closer examination, it is found to be a monument made of a mysterious, indestructible substance. It bears an inscription commemorating a military victory by someone named "Kuin", presumably an Asian warlord—twenty years in the future.
Over the next twenty years, increasingly grand monuments to Kuin continue to appear—first in Asia, then in much of the rest of the world. Pro-Kuin and anti-Kuin political movements spring up, leading to the rise of economic problems, fatalistic cults, and open war.