For 10 points, name this strategic retreat across China led by Mao Zedong to escape the Kuomintang.
Rudolf Bosshardt, a missionary captured before this event, was released on Easter Day after its conclusion, and Otto Braun's terrible planning led to the destruction of the First Front Army. Zhāng Guótāo's refusal to cooperate with this event's leader led to the annihilation of his army by the Ma clique, and following the secret Zunyi Conference this event's participants turned towards Yan'an. This event was begun when the Fifth Encirclement Campaign captured the Jiangxi Soviet, and its participants avoided being captured by Chiang Kai-shek's forces. For 10 points, name this strategic retreat across China led by Mao Zedong to escape the Kuomintang.
Rudolf Bosshardt, a missionary captured before this event, was released on Easter Day after its conclusion, and Otto Braun's terrible planning led to the destruction of the First Front Army.
Long March [accept "Chángzhēng"]