The headline indicates extensive public exposure of China's recent military exercises via numerous posters and other media. While details aren't clear from the headline alone, Japan's tight scrutiny of such activities stems from growing regional security concerns, geopolitical implications, and its particular proximity to China. The unprecedented volume of posters might suggest an escalation in the display of China's military prowess.

Japanese society is politically astute, viewing military movements of neighboring countries with informed caution. News of China’s military drills is often seen as a bellwether of regional security conditions. The increased media visibility, symbolized here by the posters, could amplify public anxiety or stimulate defense policy debates amid a culture that values peace and stability under its post-war pacifist constitution.

In comparison, the U.S or EU generally exhibits less public reaction to China's regular military exercises, given geographical distance. But they, too, glean indications of China's strategic intent from such activities. More overt displays, such as the referenced posters, might escalate rhetoric but wouldn't change strategic analysis.