FBへの投稿から"Zhou Enlai visited the Yasukuni Shrine at least three times because Yasukuni is the place to pray for the peace."
The Origins of Contemporary Sino-Japanese Relations: Zhou Enlai and Japan.
"It is significant that that Zhou visited the Yasukuni Shrine at least three times."
Author Mayumi Itoh
This book presents a comprehensive and in-depth examination of Zhou Enlai's childhood in Japan, where he learned about Marxism. Itoh analyzes primary sources to demonstrate how Zhou's experiences in Japan gave him a profound understanding of Japanese people and society that would become the foundation for contemporary Sino-Japanese relations.
Source in Chinese