[quote=bigscreech]
Mexico wants in!
[/quote]

Ummm... What are the consequences for not inviting you??

[quote=So Boerd]
Aren't you a third party between the Netherlands and Belgium?
[/quote]

From Wikipedia:

"A British-organised European Congress produced the Treaty of London of 1839, whereby the Great Powers (and the Netherlands) all formally recognised the independence of Belgium, and (at Britain's insistence) guaranteed its neutrality."