Cat Soldier in WWI Trench - Cinematic Video

Create a 15-second vertical 9:16 photorealistic cinematic video of a cute orange tabby cat inside a muddy World War-style trench, wearing a realistic olive-green military helmet and holding a small vintage rifle. Start with the camera focused on the dark trench entrance, with stacked sandbags and rough wooden planks clearly visible above. At first, only the top of the helmet slowly appears from the trench. The cat gradually rises into view while holding the rifle naturally with both paws. Keep the cat’s face, fur, helmet, rifle, trench, and background consistent throughout the entire video. Around the middle, the cat looks directly toward the camera with a serious but adorable expression and slowly raises one paw in a small salute. Maintain realistic fur movement, natural paw motion, subtle head movement, and cinematic depth of field. The camera should remain mostly stable with a very gentle handheld cinematic movement. Near the end, the cat lowers its paw and slowly ducks back down into the trench, leaving only the helmet visible. Use realistic outdoor lighting, soft overcast sky, detailed muddy soil, natural textures, shallow depth of field, smooth motion, and no text, watermark, distortion, or extra characters.