Question

What does the phrase "Queen of empires and the nurse of arms" signify?

Answer 1

The phrase "Queen of empires" depicts America’s eminence, and "nurse of arms" refers to the skill of its soldiers in using weapons. It could also mean that Americans are better equipped to be custodians of arms as they would use them with more responsibility.

Step-by-step explanation:

Answer 2

It's from "The Future Glory" by John Trumbull.
Trumbull suggests that woke the Queen is the ruler of her empire, when she sees her own men fighting and getting injured, she becomes a nurse to bring them back to good health.