No you need to be a Dutch national (as in having, or being able to claim a Dutch passport), it's the same with Romanian army, you have to be Romanian to join.

No you need to be a Dutch national (as in having, or being able to claim a Dutch passport), it's the same with Romanian army, you have to be Romanian to join. EU Law doesn't prevent EU members from discriminating against EU Nationals unless it explicitly discriminates against them, for example you can't disallow specific employment under the freedom of movement if it's allowed under a non-EU work visa (there are few exemptions when it comes nationals of "EU" territories which have various ties to specific EU member states and may or maynot be EU nationals on their own right), if you look at national level government employment as a whole across the EU they either limit employment of EU nationals (sometimes with caveats such as unless they lived in the host nation for a certain period of time) or set quotas on how many EU nationals you can employ in any given agency or institution. This is because many government institutions and agencies while not being elected officials do affect and even set policy all the time. The EU "officially" isn't set to supercede national sovereignty of its member states so it's not really surprising why France might not want the majority of its foreign service employees to be German or why Germany might not want a bunch of Polish prosecutors and judges mucking with its legal system. Also don't forget that being an EU national while grants you the right to vote in another member state, you are only allowed to vote for the EU elections in that state. Whether member states allow EU nationals to vote in local, or general elections is up to the individual member state, most of them disallow it, the same thing goes for running for office in some places you can run for local elections but even in those nations many of the party bylaws disallow foreign membership so you have to run as an independant. https://en.wikipedia.org/wiki/List_of_militaries_that_recruit_foreigners https://en.wikipedia.org/wiki/List_of_militaries_that_recrui...