Analysis of information sources in references of the Wikipedia article "Timeline of events preceding World War II" in English language version.
...on 26 January 1934 Poland and Germany signed their own ten-year non-aggression agreement.
British and French efforts to avoid another European war quickly disintegrated, and on 31 March Poland secured agreements with both countries for their military intervention should Germany invade.
On 29 April Hitler ominously renounces Germany's non-aggression pact with Poland.
Because these exercises had been in progress since June 6...
Americans think of WW2 in Asia as having begun with Pearl Harbor, the British with the fall of Singapore, and so forth. The Chinese would correct this by identifying the Marco Polo Bridge incident as the start, or the Japanese seizure of Manchuria earlier. It really began in 1895 with Japan's assassination of Korea's Queen Min, and invasion of Korea, resulting in its absorption into Japan, followed quickly by Japan's seizure of southern Manchuria, etc. – establishing that Japan was at war from 1895–1945. Prior to 1895, Japan had only briefly invaded Korea during the Shogunate, long before the Meiji Restoration, and the invasion failed.
Because these exercises had been in progress since June 6...
Americans think of WW2 in Asia as having begun with Pearl Harbor, the British with the fall of Singapore, and so forth. The Chinese would correct this by identifying the Marco Polo Bridge incident as the start, or the Japanese seizure of Manchuria earlier. It really began in 1895 with Japan's assassination of Korea's Queen Min, and invasion of Korea, resulting in its absorption into Japan, followed quickly by Japan's seizure of southern Manchuria, etc. – establishing that Japan was at war from 1895–1945. Prior to 1895, Japan had only briefly invaded Korea during the Shogunate, long before the Meiji Restoration, and the invasion failed.