My comment is in italic and a conclusion in the end. The rest of the text are copied but not edited from the British Embassy in Bangkok and Ministry of Foreign affairs. We find it very accurate and straight to the point that is why we publish it.
- This advice has been reviewed and reissued with amendments to the Summary and the Terrorism and Security and Local Travel sections. The overall level of the advice has changed on 27 April; we currently advise against all but essential travel to the whole of Thailand. They telling people to get out of Thailand.
- We advise against all but essential travel to the whole of Thailand due to the increasingly volatile and tense political situation. Violent incidents of an unpredictable nature are occurring in many parts of Thailand. They think Thailand will have Civil War.
- In the early hours of 27 April, substantial numbers of troops deployed in Central Bangkok.  On 26/27 April there were at least eight incidents in various parts of Thailand involving protestors setting up barricades, in some instances leading to clashes with the security forces. Thailands road to anarchy and lawless.
- In the last week, protests and violent incidents have taken place in other parts of Thailand including popular tourist destinations such as Pattaya, Chiang Mai, Chiang Rai, Ayuthaya and other locations. (See Terrorism/Security section for further details).
- We advise against all travel to the Preah Vihear (Khaoi Pra Viharn in Thai) temple area, due to violence in the area. See the Local Travel section of this Travel Advice. This is an old warning but still troops are clashing in near the Cambodia border.
- If you are already in Thailand, you should consider whether it is essential for you to travel within the city of Bangkok. Wherever possible, you should take transport services which do not involve transiting the centre of Bangkok. If travelling from outside Bangkok to Suvarnabhumi airport, you should be aware that all rail services and some coach services involve passing through central Bangkok (all air services and some coach services do not). There have been a number of instances of major roads being blockaded by protest groups. Phuket, Hua Hin, Krabi, Samui and Pattaya have for now no problems.
- If violence breaks out near where you are, staying you should stay indoors, monitor the media and regularly check FCO Travel Advice.  We advise extra vigilance at night when the majority of violent incidents have occurred. Leaders of protest groups have made clear threats of further violence across Thailand. You should stay in close contact with your tour operator, if you have one, who may be able to advise you on the implications of this advice for their operations. The problem is if major problem occur the TV and Internet might be cut make sure you have a rout our or phone numbers in hand.
- Suvarnabhumi airport is operating as normal. The route to the airport from Bangkok city remains open. For advice about travelling abroad, see the local Travel section. FCO advice against all but essential travel does not apply to passengers transiting Bangkok airport on their way to foreign destinations. The Government is protecting the Air Port at all cost I think that’s the last place that will close.
- There is a high threat of terrorism in Thailand. Attacks could be indiscriminate, including in places frequented by expatriates and foreign travelers. There have been a number of bomb and grenade explosions in Bangkok this year. See the Terrorism section of this Travel Advice. Avoid places around Silom and do not go out at night.
- On 22 April, five grenade were fired from M-79 launchers at the Skytrain (BTS) station at Sala Daeng and nearby areas, killing at least one person and injuring 75 others, including three foreign nationals. Tension continues to build in this area, which is patrolled by large numbers of armed troops. The Skytrain and the MRT (underground metro) are currently operating a restricted service. Avoid places around Silom and do not go out at night.
- British Nationals should exercise extreme caution throughout the country, and avoid demonstrations and large gatherings, some of which have recently turned violent. In response to anti-government protests, the Thai government declared a state of emergency in Bangkok and some of its surrounding provinces from 7 April 2010. This prohibits gatherings of five or more people in some areas and may restrict travel.
- A large number of anti-government (“Red Shirt”) protestors are based at the Ratchaprasong intersection on Sukhumvit Road in central Bangkok. Many shops and businesses in the area are closed and there is severe traffic disruption at the rally site and surrounding area. Groups opposed to the Red Shirts have held counter-demonstrations close to the Red Shirt protest area. There have been several instances of violent clashes between groups of protestors. On 21 April, one foreign tourist was injured during a confrontation between protestor groups in Bangkok. On 10 April violent clashes in Bangkok between anti-government (Red Shirt) protestors and security forces left 25 dead and many hundreds injured.
- There have been instances of anti-government activity outside the capital, which have caused disruption to travelers. On 25 April, there were reports of anti-government protestors blocking the Phanyothin Road, 40 km north of Bangkok. In the north-eastern city of Khon Kaen, Red Shirt protestors blockaded a military train on 21 April.
In conclusion, if the governments do a crack down on the protesters in the central of Bangkok, depending on the outcome the Red Shirts will probably.
1. Take the fight to the provinces where they have bigger support.
2. The number of smaller attacks in Bangkok will rise.
3. Civil war with Red Shirts and other groups can flair up.
4. The military can put a coup into place if too much chaos erupts and clamp down hard on the Red Shirts.
