Khattiya Sawasdipol, the renegade Thai general better known as She Daeng (Commander Red) was a self-styled security adviser to the red-shirt protesters. He was shot and wounded on 13 May as the army began its clampdown on the protesters. He died four days later. See a photo gallery of the Thai general.
In-pictures: Red-shirt camp
The red-shirt protests in central Bangkok began in March. Aimed at bringing down the government, they set up camp in a large area of the city taking over several streets, building barricades and at one point attracting several thousand supporters to the area. See a photo gallery of the red-shirt encampment.
After dozens of deaths in the last few days, the BBC's Chris Hogg analyses what the lasting legacy of months of anti-government protests in Bangkok may be.
Buildings in Bangkok set ablaze
Fires have been started by protesters across Bangkok, including at the stock exchange, banks, a huge shopping mall and a TV station. The fire attacks started after troops stormed the barricades of a protest camp at the heart of the city. The BBC's Chris Hogg reports from Bangkok.
Army breaches barricades
The BBC's Rachel Harvey reports from the scene as armoured personnel carriers move forwards to breach the barricades around a protesters' camp in Bangkok.
1: Ratchaprasong intersection and the main red-shirt camp: The protest hub, with a stage area and other facilities, where red-shirts have been living for weeks.Also where protest leaders announced the end of their rally as troops advance from the south.
2: Pathum Wanaram Temple: declared a safe area for women and children within the red zone.
3: Lumpini Park and southern barricade: Area to the south of the protest zone where the biggest barricade stood, and where troops began their move into the camp.
4: General shot: Pro-protest general Khattiya Sawasdipol, also known as Commander Red, was shot on 13 May; he died in hospital on 17 May. The shooting was the start of six days of clashes that culminated in the 19 May military operation.
5: Central World Plaza: Huge shopping complex set on fire by protesters after their leaders surrendered; it was gutted and reports suggest it is on the verge of collapse.