AP Photo

Thais were happy last week to see King Bhumibol Adulyadej out in the open after weeks on his sickbed. But the pictures of the thin, wan figure in a wheelchair were also a reminder of the uncertainties of Thailand without him.

That Thailand's politics are convoluted is hardly news but the twists and turns can still surprise. Take, for instance, another event earlier this month – former prime minister, retired General Chavalit Yongchaiyudh, announced he was joining the Pheu Thai (For Thais) Party, the successor to deposed prime minister and now fugitive Thaksin Shinawatra's outlawed Thai Rak Thai party. Other retired military types did the same. Chavalit earned a...