Years later, Kaunitz kept trying to establish France's alliance with Austria. He tried as hard as he could for Austria to not get entangled in Hanover's political affairs, and was even willing to trade Austrian Netherlands for France's aid in recapturing Silesia. Frustrated by this decision and by the Dutch Republic's insistence on neutrality, Britain soon turned to Russia. On September 30, 1755, Britain pledged financial aid to Russia in order to station 50,000 troops on the Livonian-Lithunian border, so they could defend Britain's interests in Hanover immediately. Besthuzev, assuming the preparation was directed against Prussia, was more than happy to obey the request of the British. Unbeknownst to the other powers, King George II also made overtures to the Prussian king; Frederick, who began fearing the Austro-Russian intentions, and was excited to welcome a rapprochement with Britain. On January 16, 1756, the Convention of Westminster was signed wherein Britain and Prussia promised to aid one another in order to achieve lasting peace and stability in Europe.

What was Kaunitz of Austria willing to trade for French help in capturing Silesia?