The Koizumi Children are loosely organized into a political association called the 83 Group (83会, hachijūsan kai).
The term is a reference to then-prime minister Junichiro Koizumi, with whom the LDP success in the 2005 elections is closely associated.
Some of the children were so-called 'assassins,' candidates hand-picked by Koizumi to defeat LDP party members who opposed his efforts at postal reform.
The 2009 election saw a massive defeat for the ruling LDP and brought the opposition DPJ to power for the first time.
Ironically, most of these Koizumi Children were defeated in their districts by candidates who were "parachuted" in by the DPJ and others in a style much like the LDP once adopted.