This seems to be from a crossword+word search. It is Western Front.
Western Front
Lenin did not have to cross battle lines. He was allowed through Germany and travelled on to Russia by way of Finland, where there was no fighting at the time.
The Eastern Front
Germany's final attempt to break the allied lines was at the battle of the bulge where the Germans went on the full offensive to regain their land but failed.
The "Eastern Front" in WWII parlance is the battle lines between Germany and Russia, from the Black Sea to the south (at one time) to as far north as Latvia. The German name for the assault on Russia was Operation Barbarossa. The battle lines were not always (or ever) associated with political borders.
It was called the "Battle of the Bulge" .
Germany's final attempt to break the allied lines was at the battle of the bulge where the Germans went on the full offensive to regain their land but failed.
Eastern Front, which took place in Central and Eastern Europe.
Answer France Germany pushed into France within a few months of the start of the war and the front lines were in France. So most of the air operations were over the front lines.
No, Germany lies between the latitude lines of approximately 47N and 55N in the Northern Hemisphere.
Early in World War One, it was clear that Germany had developed a sophisticated strategy that was unmatched by the Allies. It was called the Schlieffen Plan, devised by General Alfred Von Schlieffen. The plan exploited Germany's interior lines between France and Russia to first concentrate against France while Austria held the Russians at bay.
The "Eastern Front" in WWII parlance is the battle lines between Germany and Russia, from the Black Sea to the south (at one time) to as far north as Latvia. The German name for the assault on Russia was Operation Barbarossa. The battle lines were not always (or ever) associated with political borders.