Resolutely destroy all enemies who dare to encroach upon us! 

坚决歼灭一切敢于来犯的敌人!
Jianjue jianmie yiqie ganyu laifan de diren!
Resolutely destroy all enemies who dare to encroach upon us! 
1970, January
Zhejiang renmin meishu chubanshe (浙江人民美术出版社)
77x106.5 cm.
BG G1/963

The Mao quotation top right: 召之即来、来之能战、战之能胜 - Be ready to assemble at the first call and be capable of fighting and winning.