Was Vietnam really the third largest military power?

When American troops left Vietnam, they left behind a lot of military materials and equipment. With the support of the Equipment Department and the Soviet Union, the Vietnamese people's self-confidence has greatly expanded. They basically forgot that he was able to beat back the American troops because of the support of many countries. In particular, they consciously forgot that China supported more than $20 billion for free and sent volunteers to warn the United States not to attack the area north of the north latitude 17 line, thus thinking that they (Vietnam) were the third largest military power at that time, but actually the Vietnamese air force. So it is a joke to say that Vietnam was the third largest military power in those days.