What is the meaning of on war footing?

"On war footing" refers to a state of preparedness for conflict or military action. It implies that a country or organization has mobilized its resources, personnel, and strategies to respond to an imminent threat or engage in warfare. This can involve increased military readiness, heightened security measures, and prioritization of defense-related activities. The term can also be used metaphorically in non-military contexts to signify urgent action or readiness in response to a significant challenge.