Taxonomy The Taxonomy Database is a curated classification and nomenclature for all of the organisms in the public sequence databases. This currently represents about 10% of the described species of life on the planet.
Why the US became increasingly involved in the war in Vietnam. Extracts from this document... Introduction. Why the US became increasingly involved in the war in Vietnam America became increasingly involved in the war in Vietnam, mainly because of the domino theory, the fear of the spread of communism.
When the first big American fighting units began arriving in South Vietnam in 1965, there was a standard explanation for the United States presence. We've come here to stop the spread of Communism, the soldiers would say without hesitation.