Britain agreed to protect Bahrain
... that in 1861, Britain agreed to protect Bahrain as long as its ruler did not in engage in the "prosecution of war, piracy and slavery at sea"?
... that in 1861, <b id="mwCFw"><a href="./Bahrain–United_Kingdom_relations" id="mwCF0" rel="mw:WikiLink" title="Bahrain–United Kingdom relations">Britain agreed to protect Bahrain</a></b> as long as its ruler did not in engage in the "prosecution of war, piracy and slavery at sea"?