Rainbow Six
by Tom Clancy
CIA operative John Clark forms a secret multi-national counter-terrorist unit known as Rainbow. Based in Hereford, United Kingdom, the unit consists of two operational squads composed of elite soldiers from NATO countries, and is supplemented by intelligence and technological experts from MI6, Mossad, and FBI. Clark is the commanding officer, son-in-law Domingo Chavez leads one of the two squads, and the second in command is Special Air Service (SAS) officer Alistair Stanley.
The first deployment of Rainbow involves Chavez's squad in the rescue of hostages during a botched bank robbery in Bern, Switzerland. Several weeks later, they are deployed to Austria, where a group of left-wing German terrorists have taken over the schloss of a wealthy Austrian businessman in order to obtain imaginary "special access codes" to the international trading markets. Their third deployment involves a hostage situation in an amusement park in Spain, where a group of French terrorists take a group of children hostage and demand that various prisoners, including Carlos the Jackal, be released.
Popov, unaware of the Project, discovers the existence of Rainbow through review of the responses to his terrorist attacks, and brings it to Brightling's attention. He is later tasked by Brightling and Henriksen with orchestrating an attack on Rainbow itself in order to prevent them from being deployed to the Sydney Olympics. He persuades breakaway members of the Provisional Irish Republican Army to take over a hospital near Rainbow's base and take Clark and Chavez's wives (who work there) hostage. While two Rainbow troopers are killed and several others wounded in an ambush, Rainbow teams manage to retake the building without civilian casualties and capture some of the terrorists. Interrogation reveals Popov's involvement, causing Brightling to bring the Russian to Horizon's secret main base in Kansas. Upon learning about the Project, an appalled Popov escapes and tells all he knows to Clark. Meanwhile, Chavez and some of his men, who were deployed at the Olympics to oversee venue security, thwart the attack. Their plans in shambles, Brightling and key co-conspirators escape to another, smaller Horizon base deep in the Brazilian rain forest. Clark leads Rainbow there. They defeat the eco-terrorists' defences and destroy their facility and supplies. Knowing that there is not enough evidence to convict them, Clark has the survivors stripped naked and left to fend for themselves in the jungle, taunting them to "reconnect with nature." Chavez remarks that even he would not be able to survive there very long.