The People's Alliance for Democracy has stooped down to a nastiest move to lay siege on Suvarnabhumi Airport in order to unseat the Somchai Wongsawat government.

Its move is definitely unpopular and inflicts untold damage to the country although the PAD finally gets the undivided attention and gains a chokehold to topple Somchai.

After PAD-led protesters took control of the airport at 9.00 pm on Tuesday's night, frantic negotiations has been inconclusive.

The government is applying strong pressure on Army chief General Anupong Paochinda to intervene and clear protesters out of the airport. It wants to invoke the security law to empower Anupong to take charge of the crowd dispersal.

The PAD also wants Anupong to intervene but for an entirely different reason. It is trying to convince him to either stage a coup or throw his support to the opposition movement.

The government and the PAD both sees Anupong as having the trump card to decide the outcome of their fight.

Immediately after returning from Peru today at about 7.00 pm, Prime Minister Somchai will hold a face-to-face meeting with Anupong.

Anupong is expected to give his final answer on whether to assist the government to restore normalcy at the airport.

At this juncture, it uncertain what Anupong's stand really is. He still has half a day to review his options.

Based on his steadfast refusal to intervene in favour of the government, it is likely that he will not step in to ensure Somchai's survival.

The People Power Party is working hard in trying to replace Anupong. But it is making no headway. There is no shortage of ambitious generals willing the serve as a government's lackey. But the crucial question is whether it is possible to succeed Anupong's leadership and redirect the Army within short notice.

This leads to a dire scenario for Somchai. He may have no choice but to step down either by resigning or calling a snap election.

If the prime minister decides to cling to office regardless of dire consequences, then it is possible that by tomorrow the Democrats will resign their House seats en masse in order to force the House dissolution.

Somchai and his People Power Party are playing a high stake game to ensure survival as Anupong is about to show his trump card which can change the face of Thai politics.