These converted vans, trucks and buses are fitted with loudspeakers and prominently marked with the name of the group and propaganda slogans.
They can sometimes be seen driving around cities or parked in busy shopping areas, broadcasting propaganda, military music or Kimigayo, the national anthem.
The Greater Japan Patriotic Party, supportive of the US–Japan–South Korea alliance against China and North Korea and against communism as a whole, displays the US national flag flying side by side with the Japanese flag in the vehicles and US military marches played alongside their Japanese counterparts.
[citation needed] Rightwing groups doing public propaganda such as using the vans are known as gaisen uyoku (街宣右翼).
They are divided into traditional (pre-war), street activist (originating in the post-war era), New Right or Minzoku-ha, and Kōdō-suru Hoshu (Action Conservative Movement) groups.