If you believe that any given war movie can make you really feel the war, you need to see "Letyat zhuravli" (called "The Cranes are Flying" in English). It tells the story of Veronika (Tatiana Samoylova) and Boris (Aleksey Batalov), who are in love on the verge of WWII. They are walking along the waterfront, watching the cranes fly by, when the war starts. Boris is promptly sent off to war. Veronika hides out with a family and ends up marrying the son, whom she does not love. Boris, meanwhile, continues trotting through the countryside, fighting the Nazis and experiencing all the horrors of war, until he he runs out of energy. When Veronika - working in a military hospital - receives this news, she refuses to accept it, until Boris' body arrives home on one of the trains. Simultaneously, the radio announces that Germany has surrendered and the Allied Powers have won the war; the Soviet Union lost 27 million citizens, but it's the start of a new era.
This movie did a very good job showing the human impact of the war not only in the battlefield, but also how it affected the civilian population. This is definitely a movie that everyone should see.