Polish cavalry in Sochaczew in 1939 during the Battle of the Bzura, one of the last major military actions to have been conducted on horseback. In contrast with its traditional role in armed conflicts of the past, the cavalry was no longer seen as a unit capable of breaking through enemy lines. Instead, it was used as a mobile reserve of the Polish armies. Polish cavalry units took part in most of the battles of 1939 and on several occasions proved to be the elite of the Polish Army.Photo credit: Unknown