ONUC
Map by Wikipedia users Don-Kun and Uwe Dedering. Yellow dots represent places I marked approximately for your convenience.
Joseph Désiré Mobutu, Moïse Tshombe, and Brian Urquhart in that order from left to right in the foreground - photo from UN News
Patrice Lumumba, portrait from government of the Republic of the Congo (defunct)
Kamina Air Base, photographed from a UH-19D Chickasaw helicopter via Brig. General Mohammad Katami's camera - two UH-19Ds can be seen on either side of the plane top and center
Swedish forces approach the city of Kamina during Operation Grandslam - photo from Folke Bernadotte Academy
Joseph Kasa-Vubu
Dag Hammarskjöld, second UN Secretary-General
U Thant, third UN Secretary-General
UNEF I
Yugoslav soldiers in UNEF I - photo from State of Israel Government Press Office
Dag Hammarskjöld visits a UNEF I observation post
Indian, Danish, and Swedish soldiers practicing beach landings in the Gaza strip - photo from UN News
Map depicting locations relevant to UNEF - El Sabha's location added for your convenience as you will not find it simply by Googling it.
UNSF
Indonesia with major land formations labeled
Dutch East Indies incorporation over time