If Cambodia could solidify its territorial holdings in this war, it could not only enhance its own geopolitical and geoeconomic power, but also expand China’s influence.

Intense nationalism and disputed history — and maps — stoke the neighbors’ hostilities. Even a surge of international diplomacy has brought little hope of a lasting peace.

At least 12 killed in violent border clashes that revive a century-old conflict. Here's what led to the violence, why the Thai prime minister was suspended, and how China benefits.