Paul, you wrote: “ When the United Nations recognised 1986 as an International Year of Peace, Watchtower cautiously aligned this with 1 Thess 5:3.”
The WT also hedged their spiritual bets on 1986 with the JWs only book ‘Worldwide Security Under the “prince of peace”’ and the ‘True Peace and Security-How Can You Find It?’ books released in 1986 just in case.
Fred Franz was the president of Watch Tower Pa.
https://wol.jw.org/en/wol/publication/r1/lp-e/ws
https://wol.jw.org/en/wol/publication/r1/lp-e/tp