diplomatic relations
... that in a 1998 bilateral agreement, China pledged to respect the sovereignty and territorial integrity of Bhutan even though they have never established diplomatic relations?
... that in a 1998 <a class="mw-redirect" href="./Bilateral_agreement" id="mwFnU" rel="mw:WikiLink" title="Bilateral agreement">bilateral agreement</a>, <a class="mw-redirect" href="./People's_Republic_of_China" id="mwFnY" rel="mw:WikiLink" title="People's Republic of China">China</a> pledged to respect the <a href="./Sovereignty" id="mwFnc" rel="mw:WikiLink" title="Sovereignty">sovereignty</a> and <a href="./Territorial_integrity" id="mwFng" rel="mw:WikiLink" title="Territorial integrity">territorial integrity</a> of <a href="./Bhutan" id="mwFnk" rel="mw:WikiLink" title="Bhutan">Bhutan</a> even though they have never established <b id="mwFno"><a class="mw-redirect" href="./Sino-Bhutanese_relations" id="mwFns" rel="mw:WikiLink" title="Sino-Bhutanese relations">diplomatic relations</a></b>?