Western European Union with greater importance

This organization still exists in OTL, but is in the process of being merged into EU functions. However, what if pan-European initiatives in the 1950s and thereafter had been based off expanding and deepening the WEU rather than the ECSC?

Firstly, you'd have a union more focused on joint defence (which might make NATO somewhat redundant, or else reduce it to a bilateral treaty between the WEU and the US) and one in which there is British participation from the beginning. Not to mention what if the European Defence Community had passed.

Discuss.
 
Top