Reminds me of the woman who plastered colourful pebbles all over her steering wheel, making her airbag a personal claymore

My man is working like he’s going for the nuke

True, but I am sure most countries would be opposed to that. While Europe shares a lot with above countries, few would be willing to be forced to jump in order to defend them. Many, most or even all would do so, but they would abhore to be forced to do so by a treaty.

They can’t it is in the name. Same reason Australia and Japan can’t join. Even if we wanted them to.