本研究鑑於近年網路資訊戰在戰爭中扮演重要角色，尤其以社群媒體為主要戰場，尤其國軍組成主要介於 18 到 60 歲之間，是社群媒體使用率高的年齡層，故探討國軍官兵在社群中的涉入程度，是否會影響線下對單位的認同感及凝聚力。本研究以圖像傳播方式為主的 Instagram 作為研究之社群平台，並以虛擬社群意識作為中介變項，檢視 Instagram 軍事社群涉入程度對認同感及凝聚力的影響。Instagram 軍事社群以經營內容類別分為三種，分別為國軍官方軍事社群、軍事迷因梗圖社群、軍事文創社群，並採用問卷調查法，共獲得 199 份有效樣本，經 SPSS process 中介模型分析數據，結果顯示虛擬社群意識在國軍官方軍事社群與軍事文創社群涉入與認同感之間具完全中介效果。

 This study aims to explore the involvement of military personnel on social media and whether it affects their offline identification and cohesion with their unit. Given the important role of online information warfare in recent wars, especially on social media platforms, and the fact that the majority of military personnel are between 18 and 60 years old, an age group with high social media usage, this study focuses on Instagram as the main social media platform for military personnel. Specifically, the study examines the impact of Instagram military community involvement on identification and cohesion, with virtual community consciousness as a mediator variable. The Instagram military community is categorized into three content categories: official military community, military memes community, and military creative community. A questionnaire survey method was used, and a total of 199 valid samples were collected. The data were analyzed using SPSS process to examine the mediation model. The results showed that virtual community consciousness has a complete mediating effect on the relationship between involvement in the official military community and the military creative community, and identification.