In this task, you are given a question and a context passage. You have to answer the question based on the given passage.
Q: The port was used for what?, Context: During the First World War, Plymouth was the port of entry for many troops from around the Empire and also developed as a facility for the manufacture of munitions. Although major units of the Royal Navy moved to the safety of Scapa Flow, Devonport was an important base for escort vessels and repairs. Flying boats operated from Mount Batten.
A:
entry for many troops from around the Empire and also developed as a facility for the manufacture of munitions