Hi, I'm a UK citizen, I've been offered a permanent job in Brussels as an executive. I have two children aged 11 and 12, also UK citizens. My employer will apply for the work permit for me. My query is re visa process for my kids. Do I apply for a d-visa for them when I apply for my own? And if I have the work permit, how long is it likely to take to give the visa for all three of us? Thanks in advance for any assistance.