original: Tzu Chi was the first force from outside the People's Republic of China to join the rescue effort.
simplifications: Tzu Chi was the first to join the rescue effort outside of People's Republic of China. Tzu Chi was first from outside the Republic of China to join the rescue. Tzu Chi joined the rescue effort. They were the first force outside of the People's Republic of China to do so. Tzu Chi was the first from outside the People's Republic of China to join the rescue effort. Tzu Chi was the first force outside China to join the rescue effort. Tzu Chi was the first non-Chinese force to join the rescue effort. The first power outside of China to join the rescue efforts. The first force outside of the People's Republic of China to join the rescue effort was Tzu Chi. Other than Republic of China, Tzu Chi was the first organisation to join the rescue efforts. Tzu Chi was the first force outside the People's Republic of China to join the rescue effort.