What are the 5 broad national security challenges?

The five broad national security challenges typically include military threats from hostile states or non-state actors, cyber threats that target critical infrastructure and data, terrorism from extremist groups, economic security concerns related to trade and resource access, and environmental challenges such as climate change that can exacerbate resource scarcity and lead to instability. These challenges require comprehensive strategies that integrate defense, intelligence, and diplomatic efforts to effectively manage risks and protect national interests.