The recent trend of military is to combined Internet of Things (IoT) knowledge to their field for enhancing the impact in battlefield. That¡¯s why Internet of battlefield (IoBT) is our concern. This paper discusses how Fog Radio Access Network(F-RAN) can provide support for local computing in Industrial IoT and IOBT. F-RAN can play a vital role because of IoT devices are becoming very popular and the fifth generation (5G) communication is also an emerging issue with ultra low latency, energy consumption, bandwidth efficiency and wide range of coverage area. To overcome the disadvantages of cloud radio access networks (C-RAN) F-RAN can be introduced where a large number of F-RAN nodes can take part in joint distributed computing and content sharing scheme. The F-RAN in IOBT is very effective for enhancing the computing ability with fog computing and edge computing at the edge. To overcome the difficulties of fog computing in IoBT this paper illustrates some challenging issues and solutions to improve battlefield efficiency.