What is the relationship between Austria and Germany like?

Switzerland and the Netherlands broke off of the HRE centuries before Prussia united Germany, so the relation between Austria and Germany is far closer. It is sort of like how Portugal is not part of Spain, despite being "Spanish". read more

This effectively removed the physical land-border between Germany and Austria and allowed both countries to further consolidate their already strong links. In 1999, Germany and Austria became two of the founding members of the Eurozone and adopted Euros as their legal currency in 2001. read more