JOHANNESBURG—When Zambian President Hakainde Hichilema and Senegal’s Macky Sall disembarked at Warsaw’s Chopin Airport on the morning of June 16, they were each accompanied by 12 bodyguards.   Comorian President Azali Assoumani’s entire security detail consisted of two men.  The leaders were part of the African Peace Mission to Russia and Ukraine. Hichilema, Sall, and Assoumani…