federal troops. By 20 October, Garrison's forces withdrew from the battle while Col. Ogi officially surrendered to Gen. Adekunle. On 19 May 1968 Port Harcourt was captured. With the capture of Enugu, Bonny, Calabar and Port Harcourt, the outside world was left in no doubt of the Federal supremacy in the war. During 2017, an American intelligence study investigating light COIN aircraft contacted Garrison regarding the Biafran action."BiafraFallen Heroes: The Heroic Deeds Of Lynn Garrison In Focus." Retrieved: 3 June 2018. In response, Garrison provided details on his combat experiences in the conflict. Each year, on 30 May, the IPOB - Independent People of Biafra - hold the Biafran Annual Remembrance Day; Garrison's role has often been noted. The 2018 remembrance activities were marked by publication of articles, one entitled: "Biafra Fallen Heroes: The Heroic Deeds Of Lynn Garrison In Focus"."BiafraFallen Heroes: The Heroic Deeds Of Lynn Garrison In Focus." Retrieved: 29 June 2018. Later in 1969, Garrison flew in the last military conflict involving propeller-driven fighters (P-51 Mustangs and the Vought F4U Corsairs) during the Football War between El Salvador and Honduras. Garrison had owned an ex-French Navy Corsair 133693 which had operated in Vietnam and during the 1956 Suez Crisis, having bought it after its retirement from French service, it was transported to California for him with help from the U.S. Navy. During July, 1967, Garrison was photographed over NAS Lemoore in formation with Corsairs of VA-147 before their deployment to Viet Nam. Haitian activities Garrison's long-term involvement with Haiti commenced in August, 1980 when he accompanied Burt Lancaster as Producer/Director of a TV segment on paranormal phenomena. Lancaster was to be the host. They hoped to capture the secrets of Voodoo. Their project paralleled one by Wade Davis as he gathered material for his book, The Serpent and the Rainbow The crew filmed dozens of ceremonies around the countryside. Near midnight of August 23/24 Garrison's crew was almost killed by peasants as they tried to dig up a Zombie in the cemetery near Desdunnes, in the Artibonite Valley.{Le Matin "Burt,Port-au-Prince, Haiti, Burt Lancaster rencontre Zombie, September 25, 1980, page 1 By August 1991, Garrison was back in the political arena and, arguably, a military role as a personal advisor to Haiti's military ruler, Lieutenant General Raoul Cédras, the US Senate and, allegedly, the DIA and CIA. He acted as the interface between the American embassy and Cedras