An effect of the Long March was that communists were able to recruit peasants far from the reach of the <span>Kuomintang (KMT or Chinese Nationalist Party) army.</span>
The answer is the Kuomintang (Chinese Nationalist Party).
The Long March was a trip throughout the interior of China made by the troops of the Chinese Red Army and the armed forces of the Chinese Communist Party between 1934 and 1935, who were fleeing from the army of the Republic of China. Years before, the Communists had a zone under control in the South of the country where they established the Soviet Republic of China, but they were besieged by the Chinese army in 1934 and, therefore, they started the Long March to the interior of the country.
During this trip, the Communists led by Mao Zedong escaped to the West and the North for an entire year. Being far away from the reach of the Chinese Nationalist Party that was in the power allowed them to recruit a large number of peasants to their cause. The hardness of the trip throughout interior China would make of this one of the most significant and determining episodes in the history of the Chinese Communist Party.