Croatia has joined the European Union.
For English teachers this means that it will be harder for non-European teachers to find work there. The labor laws mean that teachers with a passport from a European country will find working in Croatia much easier than teachers from outside Europe.
In the near future there is also likely to be a clampdown on non-European teachers already in Croatia.
Teaching English in Croatia – an overview of TEFL in Croatia
Non-EU Teachers working in the EU – the visa situation for non-Europeans working in Europe