Romanian President Klaus Iohannis attends Romania's National Day celebration in Bucharest, Romania, Dec. 1, 2020. Romania held a simplified National Day celebration ceremony this year amid severe pandemic, without the large-scale military parade and flight performances of previous years. (Photos: Xinhua)

The guard of honour is seen at Romania's National Day celebration in Bucharest, Romania, Dec. 1, 2020. Romania held a simplified National Day celebration ceremony this year amid severe pandemic, without the large-scale military parade and flight performances of previous years.

Romanian President Klaus Iohannis attends Romania's National Day celebration in Bucharest, Romania, Dec. 1, 2020. Romania held a simplified National Day celebration ceremony this year amid severe pandemic, without the large-scale military parade and flight performances of previous years.

The guard of honour is seen at Romania's National Day celebration in Bucharest, Romania, Dec. 1, 2020. Romania held a simplified National Day celebration ceremony this year amid severe pandemic, without the large-scale military parade and flight performances of previous years.

Romanian President Klaus Iohannis attends Romania's National Day celebration in Bucharest, Romania, Dec. 1, 2020. Romania held a simplified National Day celebration ceremony this year amid severe pandemic, without the large-scale military parade and flight performances of previous years.

A photographer takes a selfie with two female soldiers from Guards Brigade at Romania's National Day celebration in Bucharest, Romania, Dec. 1, 2020. Romania held a simplified National Day celebration ceremony this year amid severe pandemic, without the large-scale military parade and flight performances of previous years.