Youth sections continued in some constituencies, however, for instance in Liverpool Walton where there was longstanding entryism from supporters of Ted Grant's Trotskyist faction, which later became the Revolutionary Socialist League.
The RSL, which had produced Rally in Walton, also published Socialist Fight, while before Young Guard the IS had supported a smaller publication, Rebel.
Instead, traditional left and right were brought together by the YS Action Committee, chaired by Bill Withnall from Walsall, and organised by its secretary Peter Kent from Crewe.
Peter Kent represented the North West Region on the LPYS National Committee from 1966 to 1968, and was followed by Roger Stott from Rochdale.
However, during the late 1960s the Militant tendency began to win significant numbers of resolutions at the LPYS National Conference.
An LPYS representative was given a place on the NEC, which also employed a Militant tendency Youth Officer, Andy Bevan.
Under the leadership of the Militant tendency the LPYS grew rapidly, reaching a high point of 581 branches in 1985, and organising demonstrations and protests against the Thatcher government.
In 1987, the Party removed most of the LPYS elected structures, including its National Conference, and reduced its upper age limit from 26 to 23.