Protesters holding U.S. flags attend a rally at Edinburgh place in Hong Kong, China, November 28, 2019. Thousands of protesters in Hong Kong symbolically gave thanks to America as the U.S. celebrates its Thanksgiving holiday, while China warned Washington on Thursday that it would take "firm counter measures" in response to U.S. legislation backing anti-government protesters in Hong Kong. REUTERS/Leah Millis

Protestors attend a gathering at the Edinburgh place in Hong Kong, China, November 28, 2019. Thousands of protesters in Hong Kong are giving thanks to the United States. On Thursday, they staged a so-called 'Thanksgiving rally'. REUTERS/Marko Djurica

A sign reading "Thanks" with a U.S. flag above is seen during a gathering at the Edinburgh place in Hong Kong, China, November 28, 2019. The show of appreciation, held symbolically on the day the U.S. celebrates its Thanksgiving holiday, comes after President Donald Trump signed into law congressional legislation which supported the protesters that's despite angry objections from Beijing, with which Trump is seeking a deal to end the ongoing trade war. REUTERS/Marko Djurica

Protesters holding U.S. flags sing the national anthem of the U.S. during a rally at Edinburgh place in Hong Kong, China, November 28, 2019. The new U.S. law requires the State Department to certify, at least annually, that Hong Kong has enough autonomy from China to justify favorable U.S. trading terms REUTERS/Leah Millis

Protesters holding U.S. flags attend a rally at Edinburgh place in Hong Kong, China, November 28, 2019. Thousands of protesters in Hong Kong are giving thanks to the United States. On Thursday, they staged a so-called 'Thanksgiving rally'. REUTERS/Leah Millis

Protestors hold up their lit-up mobile phones as they attend a gathering at the Edinburgh place in Hong Kong, China, November 28, 2019. Thousands of protesters in Hong Kong are giving thanks to the United States. On Thursday, they staged a so-called 'Thanksgiving rally'. REUTERS/Marko Djurica