![The Macao garrison of the Chinese People\'s Liberation Army (PLA) holds a flag-raising ceremony to celebrate the 19th anniversary of Macao\'s return to the motherland in Macao, south China, Dec. 20, 2018.](http://www.ecns.cn/hd/2018/12/20/d1df16cbc33146b8a6f8b7145e0ae548.jpg)
The Macao garrison of the Chinese People's Liberation Army (PLA) holds a flag-raising ceremony to celebrate the 19th anniversary of Macao's return to the motherland in Macao, south China, Dec. 20, 2018.
![A flag-raising ceremony is held to celebrate the 19th anniversary of Macao\'s return to the motherland in Macao, south China, Dec. 20, 2018.](http://www.ecns.cn/hd/2018/12/20/4b98dc97678a44b0bc1ff4f641d7c8d5.jpg)
A flag-raising ceremony is held to celebrate the 19th anniversary of Macao's return to the motherland in Macao, south China, Dec. 20, 2018.
![The Macao garrison of the Chinese People\'s Liberation Army (PLA) holds a flag-raising ceremony to celebrate the 19th anniversary of Macao\'s return to the motherland in Macao, south China, Dec. 20, 2018. (Xinhua/Cheong Kam Ka)](http://www.ecns.cn/hd/2018/12/20/c6c5040b103442329baa9245d4bf9a42.jpg)
The Macao garrison of the Chinese People's Liberation Army (PLA) holds a flag-raising ceremony to celebrate the 19th anniversary of Macao's return to the motherland in Macao, south China, Dec. 20, 2018. (Xinhua/Cheong Kam Ka)
![The Macao garrison of the Chinese People\'s Liberation Army (PLA) holds a flag-raising ceremony to celebrate the 19th anniversary of Macao\'s return to the motherland in Macao, south China, Dec. 20, 2018. (Xinhua/Cheong Kam Ka)](http://www.ecns.cn/hd/2018/12/20/bc271017cdc14f5db23ccced24381c4c.jpg)
The Macao garrison of the Chinese People's Liberation Army (PLA) holds a flag-raising ceremony to celebrate the 19th anniversary of Macao's return to the motherland in Macao, south China, Dec. 20, 2018. (Xinhua/Cheong Kam Ka)
![The Macao garrison of the Chinese People\'s Liberation Army (PLA) holds a flag-raising ceremony to celebrate the 19th anniversary of Macao\'s return to the motherland in Macao, south China, Dec. 20, 2018. (Xinhua/Cheong Kam Ka)](http://www.ecns.cn/hd/2018/12/20/462c8e557b9e4ebfaae52f88369c78b5.jpg)
The Macao garrison of the Chinese People's Liberation Army (PLA) holds a flag-raising ceremony to celebrate the 19th anniversary of Macao's return to the motherland in Macao, south China, Dec. 20, 2018. (Xinhua/Cheong Kam Ka)
![A flag-raising ceremony is held to celebrate the 19th anniversary of Macao\'s return to the motherland in Macao, south China, Dec. 20, 2018. (Xinhua/Cheong Kam Ka)](http://www.ecns.cn/hd/2018/12/20/31b00aa4d540473a840ca65d5d4a7f80.jpg)
A flag-raising ceremony is held to celebrate the 19th anniversary of Macao's return to the motherland in Macao, south China, Dec. 20, 2018. (Xinhua/Cheong Kam Ka)
![The Macao garrison of the Chinese People\'s Liberation Army (PLA) holds a flag-raising ceremony to celebrate the 19th anniversary of Macao\'s return to the motherland in Macao, south China, Dec. 20, 2018. (Xinhua/Cheong Kam Ka)](http://www.ecns.cn/hd/2018/12/20/f70f7455c9b547aab94ca19eb69ce931.jpg)
The Macao garrison of the Chinese People's Liberation Army (PLA) holds a flag-raising ceremony to celebrate the 19th anniversary of Macao's return to the motherland in Macao, south China, Dec. 20, 2018. (Xinhua/Cheong Kam Ka)
![A flag-raising ceremony is held to celebrate the 19th anniversary of Macao\'s return to the motherland in Macao, south China, Dec. 20, 2018. (Xinhua/Cheong Kam Ka)](http://www.ecns.cn/hd/2018/12/20/da4bf9aac9ef4af0b4675aef50fae072.jpg)
A flag-raising ceremony is held to celebrate the 19th anniversary of Macao's return to the motherland in Macao, south China, Dec. 20, 2018. (Xinhua/Cheong Kam Ka)