Kuala Lampur, Nov. 17 -- In a year when South-east Asia desperately needs calm, predictability, and a rules-based strategic environment, the escalating rhetorical exchanges between China and Japan currently have become an unnecessary - and dangerous - distraction.

The war of words may still be contained in diplomatic communiques and press statements, but it reflects a deeper structural tension that could spill over into the wider region if both sides fail to steady their tone.

The ascent of Sanae Takaichi as Japan's first female Prime Minister is historic, breaking the highest political glass ceiling in a society long defined by male-dominated leadership. Her election represents a profound symbolic shift for Japan, and for Asia as a who...