It is said that thanks to the alliance with the eldest son of Takauji ASHIKAGA, the most influential tozama gokenin (nonhereditary gokenin) who had a relation by marriage with the Hojo clan, the number of soldiers of Nitta forces reached the tens of thousands due to gokenin of neighboring area that also joined forces.
北条氏と累代の姻戚関係にある外様御家人最有力者である足利高氏の嫡男が加わったことにより、周辺の御家人も加わり、新田軍は数万規模に膨れ上がったと言われる。