Buy a world index that's not over-weighted on the US or spread your money around region indices. Keep dollar-cost averaging. Stop believing you'll get more than 3-4% yearly returns above inflation. My only real strategy change as a European was to move my money to European ETF providers away from Vanguard and BlackRock because at this point you never know what the US government is going to cook up next, and to weigh more on Europe and Emerging Markets.
What are some good European ETF providers? Do you have to be physically within Europe to use them, or can you use them as long as you have an EU passport?
It's an ETF, so it boils down to whether you have access to a particular stock exchange. European brokers support trading on US stock exchanges, so I'm sure it works the other way around too. I use Amundi and Xtrackers because they have large fund sizes, low TER, and that's what's available at the brokers I use, though not all of my brokers have Amundi, for example. The availability outside the EU shouldn't be a problem, since most funds are also at the London Stock Exchange in either USD or GBP.
