In the troubled state of European politics, the Earl's calm conduct and diplomatic experience were more useful abroad than at home, and he was sent to The Hague as ambassador for a second time. The object of his mission this time was to persuade the Dutch to join in the War of the Austrian Succession and to arrange the details of their assistance. Success was quickly achieved, and on his return a few weeks afterwards, he received the Lord-Lieutenancy of Ireland, which he had long coveted.