This book includes: Breaking through the maritime blockade; New China faced a maritime blockade; Zhou Enlai ordered the opening of the Pearl River Estuary; the Navy successfully opened the Pearl River waterway; Zhou Enlai ordered the opening of the Yangtze River Estuary; Chen Yi ordered Zhang Aiping to speed up mine clearance; Rong Yiren suggested not to block the port; the Yangtze River Estuary mine clearance blasting success; Chen Yi implemented the anti-blockade struggle; counterattacked the maritime embargo; New China faced the threat of the embargo; New China launched the anti-embargo struggle; Chen Yun proposed anti-embargo countermeasures; Mao Zedong cared about frontline materials; Mao Zedong negotiated with Stalin; Chen Yun resolved the cotton embargo crisis, etc.