An exhibition kicked off at Shanghai Library on Tuesday to mark the 90th anniversary of the founding of the People's Liberation Army. /CFP Photo 

90 pieces of artwork were displayed, including Chinese paintings, oil works and watercolor pieces. /CFP Photo 

Calligraphic works were also seen at the exhibition, showcasing poems by founding leaders and generals of the People's Republic of China. /CFP Photo  

The country has been preparing to celebrate the 90th anniversary of the founding of the PLA which falls on August 1st, 2017. /CFP Photo