[3][4] Djuvara later stated that, at the time, his political sympathies veered towards the far right: he became a supporter of the Romanian fascist movement, the Iron Guard, and took part in the February 1934 riot against the French Radical-Socialist government of Édouard Daladier.

[3] Following the establishment of Ion Antonescu's dictatorship and the start of Operation Barbarossa (see Romania during World War II), as an officer cadet, he fought on the Eastern Front, saw action in Bassarabia and Transnistria, before being wounded in the arm during the Battle of Odessa (1941).

[7] Speaking in retrospect, he argued against claims made by Nanu, according to which Ion Antonescu had thus indicated his willingness to step down and hand leadership of Romania to King Mihai I.

[7] According to Djuvara, the last Soviet offer for Antonescu made only minor concessions – the entire country was to be occupied by the Red Army, with the exception of a random western county (to function as a provisional administrative center), and 15 days were given to the Romanian government to reach an armistice with Nazi Germany[3] (Djuvara considered this latter expectation particularly unrealistic, as it involved Germany consciously abandoning Romanian territory to its enemy).

[3][6] Having been implicated in absentia in the series of show trials inaugurated in the wake of Communist Romania by the Tămădău Affair, accused of being a spy,[3] he decided to remain abroad.

[2] In 1961, he settled in Niger, serving as an adviser for the country's Foreign Ministry (extending a two-year contract until 1984),[2] and was a professor of International Law and Economic History at the University of Niamey.

Djuvara was an acquaintance of President Hamani Diori, and notably accompanied him on official duty to Addis Ababa, attending the opening session of the Organisation of African Unity (1963).

[2] Djuvara was an active contributor to Radio Free Europe,[8] and divided his time between Paris and Munich (occasionally traveling to Canada and the United States).

[2][8] He later joined the National Liberal Party,[9] and expressed his concern that President Traian Băsescu was unable to complete planned reforms in the wake of Romania's accession to the European Union, as well as his belief that the former Securitate was still in a position of power.

He characterised the efforts of the United States to establish what resembles a hegemony in Europe and other parts of the world as a "Seventy-Seven Years' War" waged throughout most of the 20th century.