Armament
Japan declares the Washington & London Naval treaties "obsolete"
Historical biography archive · Updated 2026-11-03
Okada Keisuke Biography and Timeline
Follow Okada Keisuke through 12 dated historical records for Japan.
Okada Keisuke, historical timeline
A chronological timeline drawn from matching World History Database records.
12Distinct records
1 of 1Page
1934–1936Years on this page
1934
Japan declares the Washington & London Naval Treaties as obsolete
Japan declares the Washington & London Naval Treaties as "obsolete"
Treaty of Washington
Japan declares the Washington & London Naval treaties "obsolete"
Prime Minister of Japan
Appointed Prime Minister of Japan
Rule of Jehol
Jehol is added to the empire of Manchukuo
Rule of Mongolia
Inner Mongolia is added to the empire of Manchukuo
Rule of Manchukuo
The League of Nations refuses to recognize Japan's new "empire" in Manchukuo
Rule of Manchukuo
The League of Nations refuses to recognize Japan's new "empire" in Manchukuo. Manchukuo is placed under the supervision of the Japanese military police
Diplomatic Negotiations at London
Negotiations begin to change the Washington & London naval treaties
Rule of Inner Mongolia
Inner Mongolia comes under Japanese rule
1935
Russia sells the Chinese Eastern Railway in north Manchuria to Japan &
Russia sells the Chinese Eastern Railway in north Manchuria to Japan & eases relations
1936
Election
Diet elections, the liberal Minseito win 205 seats & the right Seiyukai win 174 seats
Records, sources and methodology
These dates and descriptions come from the historical_events database. Exact duplicate records have been collapsed. Names are grouped by the country, Name 2 and Name 1 fields; records with missing Name 2 cannot be reliably assigned to an individual biography. Check the underlying sources before formal citation.