nuts and bolts, and roadblocks....
the UK is offering the Assault/Landing ship HMS Bulwark (20,000 tons, maaaahoosive flight deck, accommodation for 700 non-crew, well deck for launching small boats - RIB's and landing craft) two 'patrol' ships, the identities of which have not been released but could be anything from the 24 ton inshore boats of the Scimitar class in Gibraltar to a 5,000 ton Type 23 Frigate, and three helicopters - probably big Merlins...
however, at least two stumbling blocks have hoved into view: firstly that Italy is 'demanding' operational control of the EU effort (you provide the assets, you pay for them, we'll decide what to do with them), which is going down well, and secondly - and perhaps not unreasonably - Italy and Malta want any increace in the SAR effort to be matched by committments to take in the refugees/migrants on an EU basis, rather than a great armada of EU ships hoovering these people out of the sea and then dumping them on Italy and Malta and then legging it before you can say 'anti-immigration party'.
everyone else in the EU is giving it the big FO, arguing that being next to Africa is Italys problem, and the flip-side of having a nice climate.