Why was my hat sharp during World War II?

In the 13th year of Showa (1938, Emperor Ji of Japan in 2598), Decree No.392 was issued on May 3rd1. Due to the full-scale outbreak of World War II, the Army further revised the existing military uniforms and named them "Type 98" military uniforms.

Small cap: 98 military cap is also called combat cap, combat cap, etc. This is a simple combat hat, which can be worn under the helmet. In summer, you can hang three hanging cloths at the back for sun protection. Slight cap is also the most familiar military cap for China audience, so I won't repeat it here.

The top is pointed,

First, you can wear a helmet directly on it.

Second, it is easier to be waterproof and rainproof than a military cap.