ETFs and mutual funds offer you the access to a very wide variety of international stocks and bonds.
So if you choose an ETF or a mutual fund it doesn’t matter if you want to buy an EFT or a mutual fund from USA, Japan, Poland, Brazil or Australia.
ETFs and mutual funds offer you investing narrowly, broadly and anywhere else in between these two. But it all depends on your personal goals and investing style.
By “investing narrowly” I mean investing for example in a high-dividend stock fund or something like a sector fund-
By “Investing broadly” I mean investing for example in a total market fund.