Here Nakamura depicted the protest against the expansion of the US military base in Tachikawa. The most violent incident during the protest is remembered as Sunagawa Struggle on May 4, 1955, which is the subject of this painting.
There are many repetitions and multiplications in this painting. Waves are flowing like water that washes away or traps the figures with glasses. Steps and waves are the motifs that Nakamura repeatedly applies.