## 1 Introduction  
Handhelds, their hardware capabilities, and their software platforms provide new opportunities to support combat mission responsibilities. Exceptional computing power can be successfully applied for complex sensor data processing, instant location monitoring, data fusion, and decision support. This delivers new means for utilizing commercially available platforms integrated with external communication equipment (tactical radios, 5G LTE network systems) as specialized platforms for personal mission assistance. Supporting military individuals and decision-makers with network technology has been deployed since the early 1990s, but only now has the interoperability of hardware platforms, specialized military communication systems, and mobile devices delivered the means for the development of smartphone-integrated specialized applications. Network-enabled capabilities or network-centric warfare [1] are doctrines implementing communication and information technologies in warfare to achieve higher efficiency in combat. In recent years, information technology development in the military has been aimed at formulating, standardizing, and integrating decision support and weapon control systems organized into several classes of systems [1; 2; 3] (C4 ISR). The idea behind such tools is to collect and distribute the operational data of a conducted mission utilizing GIS functionalities [4; 5] and augmenting the data with additional information on terrain and hostile and friendly forces. The range of processed data and produced tactical information depends on the level of command and the battlespace dimensions but most of all on available data sources [6; 7]. The difficulty (while developing operational rendering environments) comes from the variety of formal NATO standards [2] and the specificity of tactical symbology (e.g., Std-2525, APP-6C) [2; 3; 8]: on top of this, a set of map data standards needs to be integrated. Geoinformation varies depending on the battlespace dimensions: in the case of cyberspace, such a relationship can even be limited. tactical common operational picture (tCOP) and mCOP [6; 9] products deliver functionality for all battlespace dimensions and crisis management due to their target audience-territorial defense units and land forces. The software needs to be secure and easily configurable to be rapidly deployed on soldiers' and commanders' handhelds (mCOP) and in lower-level command centers (tCOP). The mCOP platform delivers software (it is not a hardware platform), and therefore it utilizes the existing communication infrastructure intentionally. This research documents the construction of novel augmented reality mechanisms that have been implemented in mobile software and are capable of instantly presenting mission data to individual soldiers, thus supporting the efficiency of an operation. The novelty of these mechanisms is connected to sensor and mission data fusions, which construct tactically augmented views accessible in combat smart devices. The utilization of augmented reality views with such an analytical load of information (on units, battlespace actors, and their potential military characteristics) is being documented as one of the first, especially in terms of constructing the view and its properties to achieve responsiveness and readability. Considering the operational background of territorial defense, such a feature can also be an advantage as software that can operate in the civilian and military communications environment. Hidden combat actions performed by military units disguised as ordinary civilians using such software platforms (mCOP) can deliver operational capabilities integrated within commercial smartphones, which can be seamlessly used in combat or intelligence operations. The presented research concentrates on developing specialized combat functionality that directly supports battlespace data acquisition, processing, and distribution between friendly side assets (gaining decision superiority).