1936年2月20日夜晚,陕西清涧县黄河河口,一支头戴红五星帽子、衣服背上缝着方正白布的队伍,乘着木船和羊皮筏子向着对面山西石楼县驶去。“密云遮星光,万山乱纵横,黄河上渡过了抗日英雄们。”这是红十五军团先遣支队在执行开辟红军东征道路的任务。没有星星,没有月亮,黑漆漆的夜晚就是最好的掩护。伴随着河面冰坨的撞击,渡船驶向河中央,对岸阎锡山晋绥军的防御工事突然发出了猛烈的枪炮 On the night of February 20, 1936, on the mouth of the Yellow River in Qingjian County, Shaanxi Province, a red-capped five-star hat was stitched with a team of white cloth on his back and rode alongside wooden boats and sheepskin rafts toward Shilou County, Shanxi Province. “This is the task of the advance detachment of the Red 15 Corps in implementing the road leading to the eastward expedition of the Red Army.” No stars, no moon, dark night is the best cover. Accompanied by the impact of ice lumps on the river, the ferry sailed toward the river center, on the other side of the Yan Xishan Jinsui military fortifications suddenly sent fierce guns