I was not aware of this. Can you provide some more info? Thank you.
it’s been pretty well documented. Here it’s mentioned in a paper by someone at the USAF command and staff college. Quote and link below. They also worked with the Baader-Meinhof gang and the Japanese Red Army, BTW.
“...In addition to linkages between the PFLP and various terrorist groups in Latin America, Europe, and Japan, PFLP ties to the Irish Republican Army (IRA) are worth noting. According to several sources, these links date back to 1968-69, when IRA cadres reportedly began training in various Palestinian guerrilla camps. During May 1972 this informal arrangement was formalized at a Dublin conference of several terrorist organizations. At this gathering the PFLP pledged assistance to the IRA in the form of arms shipments as well as diplomatic support from various radical Arab states. Among these, Libya had been prominent in its vocal endorsement of the IRA and reportedly has provided five million pounds sterling for IRA operations. Libya also seems to have become a significant source for IRA’s weapons, as evidenced in the April 1973 capture of West German gunrunning vessel, the Claudia, off the Irish coast. The ship was loaded with arms sent from Libya.”
http://www.airpower.maxwell.af.mil/airchronicles/aureview/1976/jan-feb/russell.html