weapons manufacture or spacecraft rocket launchers, missiles or unmanned aerial vehicle and satellite are used for national defence. The development of information technology has led to connected various sectors of life in a cyber space through network, cable, and Internet Protocol (IP) via computer and other means. Climate change will indirectly affect the security issues. The basic needs are vital to mankind’s endurance in all respects. 16 It is the perspective of defence that cyberspace has become the fifth domain used as a battlefield, excepts land, sea, air and space. The use of systems, equipment, and internet-based platforms tends to be more widespread and its potential creates vulnerability. Global climate change impacts on human life environment. This change has shown a tendency of temperature rise in the earth’s surface, seawater temperature change, ecosystem change, rising sea levels, changing uncertain seasons, increased rainfall, droughts, storms and hurricanes. These trends have a direct and indirect impact on the basic needs of human beings, especially food, water, health and energy. Climate change will affect the security issues indirectly. Non-fulfilment human life basic needs will cause disruption resilience and environment adaptability leading to insecurity. It also affects the dynamics of politics, economy, water and food crisis, the emergence of pandemic disease, the migration and conflict.