People participate in a parade ahead of the Mexican Independence Day in Chicago, the United States, on Sept. 9, 2018. (Xinhua/Wang Ping)

People participate in a parade ahead of the Mexican Independence Day in Chicago, the United States, on Sept. 9, 2018. (Xinhua/Wang Ping)

A man participates in a parade ahead of the Mexican Independence Day in Chicago, the United States, on Sept. 9, 2018. (Xinhua/Wang Ping)

People participate in a parade ahead of the Mexican Independence Day in Chicago, the United States, on Sept. 9, 2018. (Xinhua/Wang Ping)

People participate in a parade ahead of the Mexican Independence Day in Chicago, the United States, on Sept. 9, 2018. (Xinhua/Wang Ping)

People participate in a parade ahead of the Mexican Independence Day in Chicago, the United States, on Sept. 9, 2018. (Xinhua/Wang Ping)

A man participates in a parade ahead of the Mexican Independence Day in Chicago, the United States, on Sept. 9, 2018. (Xinhua/Wang Ping)

A woman participates in a parade ahead of the Mexican Independence Day in Chicago, the United States, on Sept. 9, 2018. (Xinhua/Wang Ping)

A woman participates in a parade ahead of the Mexican Independence Day in Chicago, the United States, on Sept. 9, 2018. (Xinhua/Wang Ping)

People participate in a parade ahead of the Mexican Independence Day in Chicago, the United States, on Sept. 9, 2018. (Xinhua/Wang Ping)

A man participates in a parade ahead of the Mexican Independence Day in Chicago, the United States, on Sept. 9, 2018. (Xinhua/Wang Ping)