A sales ban would simply be in compliance with international law, and the UK is a member of the ICC, so even a partial ban is failing to live up to their obliga

A sales ban would simply be in compliance with international law, and the UK is a member of the ICC, so even a partial ban is failing to live up to their obligations. The US is not currently a signatory but it's own laws make it illegal to export arms to Israel, so I guess we're "more" of an ally, as we're willing to more flagrantly break the rules in this regard, but the UK is still pretty far in favor of Israel with their current stance.