In 1941 How did the japanese army and air-force compare to the american army and air-force?

they were at war for 5 years

The Japanese had been at war in China for 5 years up till 1941. The Army was experienced and battle harened. The United States had a small army with no combat experience. The Japanese airforce was modern with small bombers and agile fighters. The Zero fighter aircraft was superior to any American fighter aircraft.