Named Data Networks (NDN), the most prominent realization of the Information Centric Networks (ICN) communication paradigm, emerged in recent years as a transformational technology. The NDN architecture simplifies the network by shifting its focus away from endpoint connectivity (which was the primary need of legacy applications like telnet) and towards data (which is the primary need for today's applications like video streaming and IoT networking). The core building block of the NDN architecture is named, secured data packets. NDN provides features such as application-defined hierarchical naming, built-in security, stateful forwarding, and in-network caching. These NDN features enable more efficient communication, better resilience to challenging network dynamics, and improved latency in data delivery. NDN is now emerging out of the basic research phase and into the applied research phase as it is being considered as a communication paradigm for Internet of Things (IoT), vehicular networks, and tactical network environments. This tutorial aims at introducing NDN as a transformational technology in the battlefield. We will start by highlighting the communication challenges in tactical networks. As an illustration, we will utilize a notional tactical network environment that includes representative traffic models, disruption/delay models, and mission objectives. We will focus our discussion towards characterizing disrupted networks and the architectures specifically designed to operate in such constrained and challenging environments. Next, we will introduce the NDN architecture and provide a brief demonstration of NDN's functionalities. This will also include a historical timeline of how NDN evolved, an introduction to the NDN reference codebase and global testbed, and a discussion of recent advances in NDN research. We follow that with a discussion of the merits of the NDN architecture in a tactical network setting and present results that show the resiliency, efficiency, and security of NDN even under extreme network conditions. Next, we will discuss NDN's role in the future of IoT and the state of the NDN research in that area. Finally, we provide a vision of NDN as a fundamental building block in a future tactical network setting dominated by IoT-like devices and connectivity.