AB - The extensive joint force modernization program for defense requires integrating various modern network systems that operate globally connected networked systems. This advancement of the battlefield is developing very complex and striving to adapt with ever-increasing capacity challenges at the tactical edge. Military network in revolutionary Software Defined Network (SDN) architecture with Service Oriented Architecture (SOA) principle offers an intelligent centralized network with advanced management features. However, interoperability between heterogeneous communication equipment of a battlefield network remains an ongoing challenge. This paper argues that the overlay feature in an SDN network can resolve the interoperability issues referenced from Federation Mission Network (FMN). We have used two simple scenarios to realize the simplicity of configuring the overlay network over SDN and discuss the usability of the overlay approach in the military network in terms of interoperability. AU - Khan, S AU - Hussain, FK DA - 2022/01/01 DO - 10.1007/978-3-030-99584-3_48 EP - 565 JO - Lecture Notes in Networks and Systems PB - Springer Nature PY - 2022/01/01 SP - 554 TI - Software-Defined Overlay Network Implementation and Its Use for Interoperable Mission Network in Military Communications VL - 449 LNNS Y1 - 2022/01/01 Y2 - 2026/06/13 ER -