甲州軍団出陣 Off to battle
In English, one would probably call this a parade. In Japanese 軍団出陣 implies the soldiers are heading to the front lines of battle, and such is the nature of the Takeda Shingen Parade. The loudspeaker calls out which regiment is summoned to the front lines as dramatic music plays through the streets.
You may remember the guy on horseback in the top photo from this earlier picture.
If it weren’t for the thousands of people in modern dress watching, and the retail outlets surrounding the scene, your imagination could take you back a few hundred years to the actual events. The Shingen Ko Matsuri (Takeda Shingen Festival or 信玄公祭り) is your next best thing to a time machine.