In Militaire a cheval, a soldier is depicted riding a majestic horse. The colors are rich and varied, with deep browns and greens dominating the scene. The soldier's uniform is detailed, showcasing the craftsmanship of the era.

The background features a blurred landscape, emphasizing the figure in the foreground. The painting is executed in oil on canvas, a common medium for historical works of this period. The artist employs a realistic style, focusing on the accurate representation of the soldier's attire and the horse's anatomy. The dimensions are approximately 100 x 150 cm, making it a substantial piece.

The use of light and shadow adds depth to the composition. Isidore Pils was known for his historical and military subjects, often reflecting the values of French nationalism. Militaire a cheval is a notable example of his work from the 1860s, showcasing the pride and valor associated with soldiers of the time. An interesting fact is that Pils was also a professor at the École des Beaux-Arts in Paris, influencing a generation of artists.