Civilian Support to Military ( donation ) / 1930's Japanese Postcards : Radio Equipment Dedicated to the Army 5th Division by Hiroshima, Yamaguchi & Shimane Pref.

Civilian support to military like this was often conducted in the 1930's.

Ministry of Army encouraged it as it helped patriotism & 

interaction between local cities & their regional divisions or regiments.

1913 Japanese Army Postcards Commemorative for the Special Large Scale Maneuvers in Aichi Pref. / Civilian Support to Military

It was an honor for local cities to provide Army maneuver fields, and motivated them to make postcards like these ones.
Soldiers stayed at local private houses at night ,that helped military-civilian exchange, civilian understanding & support to military.

1930's Japanese Postcard : Art of Japanese Nationalism & Anti Extremism "Protect this immortal Shinkoku (country of God) !!! Kageki Shisou (Extremism = Bolshevism ) is about to invade !!! " ( Anti Bolshevik communism soviet )

Russian revolution brought Japan communist sympathizers especially among some intellectual class people. Japan feared communism , calling it "Kageki Shisou", and the other intellectuals let Japanese tradition & loyalty to the emperor confront it like this postcard.

Sometimes civilian speaks more aggressively & loudly than military about the national defense

In the early 1900's, Japanese academic authority presented its opinion to the government, saying Japan should fight Russia, while the government was still unsure about winning the war.

One day, before the war, when the diplomatic process was still active between Japan & Russia, several intellectuals visited General Oyama Iwao (the Commander-in-Chief of the Japanese armies in Manchuria at Russo Japanese War) to express necessity of the war against Russia.
After the meeting, he said to his wife " today I met three idiots."

In the 1940's, the diplomatic process was still active between Japan & US, some newspaper said
" Prime minister Tojo Hideki is coward".

Below materials are from the early 1930's.  Although the government & military actually knew US & its allies could be Japan's hypothetical enemies, they tried to avoid a conflict with the West, seeking for the West's understanding toward what Japan was doing in China.
While government was trying to manage the situation carefully, the civilian spoke loud about the national defense, which one could be enemies, and what to do to face them.
These materials (postcards & flyers) were all published by civilian organizations.

Below materials show military power comparison between the world powers, implying "Japan should be stronger".