Who were the ultra-nationalists in Japan? What did they want?

Uyoku dantai  are Japanese ultranationalist far-right groups.

Most, but not all, seek to justify Japan's role in the Second World War to varying degrees, deny the war crimes committed by the military during the pre-1945 Shōwa period and are critical of what they see as a "masochistic" bias in post-war historical education. Thus, they do not recognize the legality of the International Military Tribunal for the Far East or other allied tribunals and consider the war-criminals enshrined in the Yasukuni Shrine as "Martyrs of Shōwa". They support the censorship of history textbooks, or historical negationism.

Explanation:

OPEC was protesting US support of the Israeli military during the Yom Kippur War when it imposed its embargo.

Explanation:

In response to US aid to Israel, OPEC raised its oil price from 70% on October 16, 1973 to $ 5.11 a barrel. Saudi Arabia and the other Arab oil-producing states joined the embargo on October 20, 1973.

Price increases were also imposed. As short-term demand for oil is inelastic, immediate demand falls little as the price rises. As a result, market prices rose from $ 3 a barrel to $ 12 a barrel to adjust demand to lower new supply. The world financial system, which was already under pressure from the Breton Woods collapse, was set on a recessionary path and inflation, which persisted until the early 1980s, with oil prices remaining high until 1986.