Apparently Thailand's army, with their green fatigues, are known as the Green Party for their history of political involvement. If only there was a real Thai Green Party to make that joke redundant.Incidentally, the current protesters, who appear to be semi-aligned with the army, may be closing down airports, which has a certain appeal, but they're only doing it to challenge Thai democracy. Also not my preference.
"Green Party closes down airports with direct action"... there could be worse headlines :)
More seriously you might be interested in this piece from the Guardian a few days ago by the Green Party's very own Natalie Bennett.