It's beyond argument, two weeks after the overthrow of Kyrgyzstan's president, Kurmanbek Bakiyev, that Russia played a critical, possibly decisive role in his downfall.
According to Anthony Andrewes, professor of ancient history, the extravagant hopes that his successes of the previous summer had created were a decisive element in his downfall.
As Nelson Mandela told me after his release from prison 20 years later, this breakthrough for the anti-apartheid movement, propelling South Africa into world sporting isolation, was a decisive factor in the eventual downfall of apartheid.
General Abdel Fatah al-Sisi, the army chief who played the decisive hand in Morsi's downfall, was given the title of first deputy prime minister in addition to his existing role as defence minister, raising further fears that the military is not taking as limited a role in Egypt's transition as it claims.
Even so, he acknowledged that the decisive factor in Stewart's downfall was not anything that he did, but the decision by the UFA to run candidates in 1921; in Thomas's view, Sifton would have been defeated in 1917 if he had had to contend with a politicized UFA.
The military played a decisive role in Mr. Estrada's downfall, when top generals abruptly shifted their allegiance to Mrs. Arroyo, who was vice president at the time.
He had a reputation as a decisive, effective leader, and despite his downfall, he's still admired in the city.
The brown vote may be the most decisive factor in Trump's political downfall.
He thought it positive that Johnson had dithered over such a difficult decisions, and then came a dig at Cameron: "I suspect that one of the reasons for Mr Cameron's downfall is that he has the unusual vice of being too decisive, tending to snatch at something... and rush forward without thinking it through".
Sanctions may have contributed to the downfall of Laurent Gbagbo in Côte d'Ivoire and Muammar Qaddafi in Libya, but the decisive blows were military.
