Design a strong, modern icon symbolizing a Disaster Recovery (DR) Application Environment. The icon should feature a shield or lifebuoy, representing protection and recovery, alongside a server or cloud symbol, indicating the restoration of critical infrastructure. Include subtle elements like a refresh or reload symbol, emphasizing recovery and resilience. Use a dark background with bold accent colors like red, blue, and green to signify urgency, reliability, and stability. The design should convey preparedness, protection, and the ability to recover from failures with a sleek, robust appearance.