Note that Spike A is largely attributable to the siege at the Krue Ze Mosque in Pattani (mentioned in this earlier post), while Spike B illustrates the dramatic (but short lived) plunge in violent incidents following the September 2006 Thai Coup.

Downward trend C correlates with a change in Royal Thai Army tactics in re-committing to cordon and search operations, while period D illustrates the continuing baseline level of violence in the conflict.