[Polaris]

i have a couple of questions that i always thought about . first is how long did D-day last , like for example how long would an allied soldier stay fighting untill the allies took the beach completely , and which beach lasted longer to conquer , not which one was tougher , but which one lasted more till they got to relax . second is what kind of relationship did the russians have with the rest of the allies , like did they discuss war plans or times of battles and where did they do it , like did they send representatives to the UK or something ? third is what kind of bird is that , that germany had as a monument/statue with the wings , that you see in books and shows .