In the years 1924–1926 he studied in the Wyższa Szkoła Wojenna (Polish Military Academy).
He was also the first commandant of the Wyższa Szkoła Wojenna, temporarily recreated in the United Kingdom during wartime, and he was involved with the re-establishing of Polish military journal Bellona [pl] in the United Kingdom during that time frame.
The catastrophe, while officially classified as an accident, has led to several conspiracy theories that persist to this day, and often propose that the crash was an assassination, which has variously been blamed on the Soviets, British, Nazis or even a dissenting Polish faction.
[3][4][5][6][7][8] As part of an investigation into the death of Władysław Sikorski, one of the victims of the B-24 crash, which was undertaken in the 2000s by the Institute of National Remembrance in Poland, the bodies of crash victims Tadeusz Klimecki, Andrzej Marecki, and Józef Ponikiewski [pl] were exhumed from their resting place in Newark, United Kingdom, on 3 December 2010.
On 9 December 2010, Tadeusz Klimecki and Andrzej Marecki were re-buried in the Powązki Military Cemetery in Warsaw.