nostr:npub1shdead6zc225cxlyev5z2q9plj3u60u5qay38q8ajgwmet5mygjqhwyzwy 

Well, as I understand it a strike is a refusal or withdrawn of work while under contract.... when the contract ends & no new one is in place, that is not a withdrawal of labour its the end of the contract..... indeed, the employers have been trying to get a negotiated extension to the contract while talks continue, but the unions refused... hence, no contract & so no legal agreement to work at all.