Greenland cryolite mines

The transcript discusses the strategic advantages held by the German high command due to their ability to obtain accurate weather forecasts, which were crucial for airfleets and invasion forces. Additionally, it highlights Greenland's significance as a vital source of natural cryolite, essential for processing aluminum, a key material in aircraft manufacturing.

What is cryolite and why was it essential to the processing of aluminum?

How was aluminum vital in the manufacture of aircraft?