Just watched it and recommend it. Stars Jaime Dornan (50 Shades) and Jason O Mara (Life on Mars, Terra Nova and Sons of Liberty)
Had not heard of this before but an interesting political / UN background behind this small battle. The film is based on the 2005 book The Siege at Jadotville: The Irish Army's Forgotten Battle by Declan Power.
The Siege of Jadotville took place in September 1961, during the United Nations intervention in the Katanga conflict in Congo-Léopoldville in Central Africa when a company of Irish UN troops were attacked by troops loyal to the Katangese Prime Minister Moise Tshombe. The lightly-armed Irish soldiers resisted Katangese assaults (led by French mercenaries) for six days as a relief force of Irish and Swedish troops unsuccessfully attempted to reach the Irish force besieged in Jadotville.
First time Irish involved militarily overseas.
A Company, 35th Battalion tactically defeated a larger enemy force at Jadotville when they were outnumbered 20 to 1. However the Irish Defence Forces did not overtly acknowledge the battle – possibly over the perceived shame that A Company had surrendered, or because of the political and strategic errors demonstrated at higher levels.
Their bravery was never acknowledged until in 2016 the Irish government awarded a Presidential Unit Citation to A Company,the first in the State’s history.
The Irish Captain had no prior combat experience but the French commander, Roger Faulques, was a very experienced Legionnaire with WW2 , Vietnam, and Algerian service and highly decorated.
It was at this time that UN Sec Gen Dag Hammarskjöld was killed in a Douglas DC-6 airplane crash en route to Congo cease-fire negotiations
https://en.wikipedia.org/wiki/Siege_of_Jadotville
https://fr.wikipedia.org/wiki/Roger_Faulques