China urged Cambodia and Thailand to end their border war in July. But weeks earlier, it had sent rockets and artillery shells to Cambodia, Thai intelligence documents show.

A museum’s directors said Chinese and Thai officials pressured them to remove the names of artists whose works criticized China. The curator flew to London, fearing arrest.

Laos is just one of the emerging markets where China’s green-tech revolution is installing more than cheap energy.

Thailand, Vietnam and other countries in the region face much higher tariffs on exports with Chinese-made components. But questions remain on how the U.S. defines a locally made product.