What movie is the quiet village breaking into a large number of Germans?

In September p>1944, surrounded by mountains in Tuscany, there appeared a beautiful and unusual legend: four black soldiers from the 92nd division of the American Army "Buffalo Warrior" tried to rescue an Italian boy because of one of them's sudden heroism, but they failed to think about it and lost contact with the big army. Being trapped in the enemy's war zone, four people came to a small village in Santa Ana, but they were warmly treated by the villagers. At that time, the widespread racial discrimination in the United States did not ease much because of being in the army. The government even allowed blacks to form an army independently and regarded them as dispensable victims. However, four soldiers who were indifferent and alienated from their compatriots because of their skin color found spiritual comfort in a remote village in Italy.