Why isn't the rest of Asia afraid of China? … Are tensions high in Asia? It certainly appears so. Over the last few months, North Korea has tested missiles and threatened the United States with nuclear war. China spars regularly with Japan over ownership of a group of disputed islands, and with several Southeast Asian countries over other sparsely inhabited rocks in the South China Sea. Meanwhile, the United States is in the midst of a well-publicized "pivot" to East Asia, and continues to beef up its military deployments to the region. … Yet as of 2012, military expenditures in East and Southeast Asia are at the lowest they've been in 25 years -- and very likely the lowest they've been in 50 years (although data before 1988 is questionable). While it's too early to factor in recent tensions, as China's rise has reshaped the region over the past two decades, East and Southeast Asian states don't seem to have reacted by building up their own militaries. If there's an arms race in the region, it's a contest with just one participant: China.