One way in which the conquest of manchuria by
the japanese (1931) and the annexation of
czechoslovakia by germany (1939) are similar is
that these actions
(1) marked the end of the aggressive expansion
of these nations
(2) demonstrated the weakness of the league of
nations
(3) reestablished the balance of power in the
world
(4) led to the long march

One way in which the conquest of Manchuria by the Japanese (1931) and the annexation of Czechoslovakia by Germany (1939) are similar is that these actions 2. demonstrated the weakness of the League of Nations. The League was established to ensure peace and allow for the self-determination of nations. However, the conquest of Manchuria and Czechoslovakia, two weaker nations nearby stronger ones (Japan and Germany), showed that the League was unable to prevent militaristic nations from harming or imposing their will upon weaker ones.