Planes fly over a square during an event to celebrate the national day of Spain in Madrid, Spain, Oct. 12, 2020. (Spanish Ministry of Defense/Handout via Xinhua)

People participate in an event to celebrate the national day of Spain in Madrid, Spain, Oct. 12, 2020. (Spanish Ministry of Defense/Handout via Xinhua)

Medical workers participate in an event to celebrate the national day of Spain in Madrid, Spain, Oct. 12, 2020. (Spanish Ministry of Defense/Handout via Xinhua)

People participate in an event to celebrate the national day of Spain in Madrid, Spain, Oct. 12, 2020. (Spanish Ministry of Defense/Handout via Xinhua)

Spanish King Felipe VI (L) awards medals to soldiers during an event to celebrate the national day of Spain in Madrid, Spain, Oct. 12, 2020. (Spanish Ministry of Defense/Handout via Xinhua)

A Spanish national flag flies at half-mast to mourn the COVID-19 victims in Madrid, Spain, Oct. 12, 2020. (Spanish Ministry of Defense/Handout via Xinhua)

Military members participate in an event to celebrate the national day of Spain in Madrid, Spain, Oct. 12, 2020. (Spanish Ministry of Defense/Handout via Xinhua)