Basic History really. Well, tracing it back yes. The ECSC was the most noteworthy form of solidarity between France and Germany. I think it was largely coincidental.
Józef Hieronim Retinger was a WWII Polish political adviser and a founder of the European Movement instrumental in the founding of the European Union.
Retinger was Eminence Grise
to General Sikorski and the Polish-government -in-exile and in 1944, he parachuted into occupied Poland at age 56, with Tadeusz Chciuk-Celt, in Operation Salamander. Retinger was the oldest of the trained cichociemni
to parachute back into Poland. His precise role in WWII is still very much shrouded in mystery. When the RAF dakota was picking up the V2 rocket parts from Poland under Operation Wildhorn III to ship them back to England the orders were that if the Germans discovered the operation Retinger was the
priority— all else and everyone else were expendable.
Such was the mystery surrounding Retinger's role with the Polish Government and his secret mission in Poland that the AK who were not informed about the nature of the mission totally mistrusted Retinger and repeatedly sabotaged it; Retinger was robbed of his papers and prevented from boarding an urgent return flight from Poland codenamed Operation Wildhorn II. Rogue elements within the AK (Home Army) even ordered Retinger to be 'liquidated' during summer of 1944. Several attempts were made on his life, the last being when an AK nurse named Izabela Horodecka, who was assigned to Unit 993-W of the Home Army (which specialised in targeted killings) was to give him a lethal substance but she adminstered only about half the dose. So Retingner survived the poisoning, but was delayed by two months in returning to London, and he was still paralysed for a few months afterward. Cichociemni
Marek 'Celt' had to carry him on board the RAF dakota during Operation Wildhorn III, Retinger arrived safely back in England along with cases of captured V2 rocket parts and several Polish intelligence agents. Retigner's mission reports were not documented and as he reported directly (and only) to the Polish P.M. the exact nature of his missions are not preserved.
See Z Retingerem do Warszawy i z Powrotem
by Marek Celt.