张学良主政东北后,力主改旗易帜,归附南京政府。但在具体实施过程中,他却屡次延缓易帜。究其原因,日本的干涉让他不得不审慎进行,内部政局不稳是迫使他不得不做出这一选择,而以退为进,争取更大的权力则是他选择延缓易帜的深层动因。在解决完这所有的问题后,张学良始毅然易帜。 After Zhang Xueliang came to dominate the northeast, he changed his banner to banner and returned to the Nanjing government. However, in the specific implementation process, he has repeatedly delayed the flag. The reason for this is that Japan’s intervention has forced him to proceed cautiously. The internal political instability forced him to make this choice. To retreat and strive for greater power was the underlying reason why he chose to delay the change of flag. After all these problems have been solved, Zhang Xueliang resolutely set flags.