From 1923 to 1927, he was stationed at the British legation in Beijing, China and in 1925 was involved in an international incident when he visited with the American explorer Roy Chapman Andrews Urga (modern Ulaanbaatar), the capital of Outer Mongolia.
The journalist George Bilainkin who visited Vereker's home in Warsaw in 1934 described it as decorated with Hungarian and Chinese art, giving it a very "Oriental" feel.
On 16 May 1936, the French ambassador to the Soviet Union, Robert Coulondre met Vereker to talk to him about settling up an Anglo-Franco-Soviet alliance to contain Nazi Germany.
[5] Vereker told Colondre that his view was that the "Russians were Asiatics...and that with present Byzantine regime in the Kremlin anything might happen", concluding that the Red Army would be no match for the Wehrmacht and there was no point in trying to have the Soviet Union as a counterweight to Germany for that reason.
[6] Vereker, who tended to sympathize with Ukrainian nationalism, told Litvinov: "I always understood that it was something more than a mere blowing of horns, and that in fact it was nothing less than an earthquake that caused the collapse of the walls of Jericho".
[11] As a landing at Petsamo above the Arctic Circle would be difficult and a journey across Norway and Sweden would be a more expeditious way to reach Finland, Vereker wanted Tanner to pressure the Norwegian and Swedish governments to grant transit rights to the British.
[12] On 27 February 1940, Vereker was informed by London that there were rumors that the Finns had opened peace talks with the Soviets owing to their recent defeats, and he was instructed to find out if this was true or not.
[10] Tanner admitted that the Finns had opened peace talks via the Swedish government, and through he stated he was moved by the British offer of help, he added that April would be far too late for his nation.
[10] Tanner stated that the military situation was dire as the Red Army was advancing into Karelia, and Finland needed to either make peace now or be conquered.
[11] Vereker believed that if he promised a larger force, then the Finns would be more likely to make the appeal for British aid, and thus the Norwegian and Swedish governments would be more likely to grant transit rights.
[15] On 9 March 1940, the Foreign Secretary, Lord Halifax, instructed Vereker to tell Tanner that Britain was willing to supply 50 Blenheim bombers within the next two weeks and the expeditionary force to aid Finland would be sent as soon as the Arctic ice had melted.
In a propaganda move, Vereker suggested that the Foreign Office buy a shipload of South African oranges to present to the Finnish people in recognition of "their superb fight in defense of Western Civilization against the forces of darkness".
[21] In the summer of 1940, Vereker claimed success in his dispatches to London, saying that the Finnish middle classes were becoming more pro-British and less convinced of the possibility of a German "final victory".
[23] Vereker sympathised with the Finnish government, but warned that Britain expected Finland to honor the concession and made it clear that he did not want any of the nickel from Petsamo to go to Germany.
[28] Vereker's obvious affection and sympathy for Finland together with his ingrained hostility to the Soviet Union led many Finnish officials to assume that his views represented British policy.
[29] Churchill, for all his anti-communism was not prepared to sacrifice the new, if awkward alliance with the Soviet Union for the sake of Finland, an aspect of British strategy that the Finns did not understand very well.
[29] The fact that Finland was allied to Germany and assisting the Reich with its efforts to sever the "Murmansk run" caused Anglo-Finnish relations to go into a rapid decline in the summer of 1941.
On 23 March 1944, the Uruguayan foreign minister José Serrato told Vereker about his government's concern about the "hostile" and "clumsy" American attitude towards Argentina.
[34] On 15 November 1944, Eden wrote to Vereker: "Most of the holders of these documents (Latin American passports) are of the Jewish race who have been accepted as immigrants to Palestine".
On 11 August 1947, in a public letter Vereker thanked Alberto Guani, the Uruguayan foreign minister in 1939, for interning the crew of the Admiral Graf von Spree after the Battle of the Rio Plate.