For those ignorant like me:

• VXUS = Vanguard Total International Stock ETF
  • https://investor.vanguard.com/investment-products/etfs/profile/vxus
  • Seeks to track the performance of the FTSE Global All Cap ex US Index, which measures the investment return of stocks issued by companies located outside the United States.
  • Broad exposure across developed and emerging non-U.S. equity markets
  • Follows a passively managed, index replication approach.
• EUAD = Select STOXX® Europe Aerospace & Defense ETF
  • https://www.select-funds.com/