The United Kingdom and the League of Nations played central roles in the diplomatic history of the interwar period 1920-1939 and the search for peace. British activists and political leaders helped plan and found the League of Nations, provided much of the staff leadership, and Britain (alongside France) played a central role in most of the critical issues facing the League. The League of Nations Union was an important private organization that promoted the League in Britain.Helen McCarthy, The British people and the League of Nations: Democracy, citizenship and internationalism, c. 1918–45 (Manchester UP, 2013). By 1924 the League was broadly popular and was featured in election campaigns. The Liberals were most supportive; the Conservatives least so.Peter J. Yearwood, Guarantee of peace: The League of Nations in British policy 1914-1925 (Oxford University Press, 2009) pp. 281. 366/ From 1931 onward, major aggressions by Japan, Italy, Spain and Germany effectively ruined the League in British eyes.

Eric Drummond, Secretary-General, 1920-1933

Between 1918 and 1919, he was a member of the British delegation to the Paris Peace Conference, where he was engaged in the drafting of the Covenant of the League of Nations. In 1919 he accepted the position of the Secretary-General of the League of Nations, on the recommendation of Lord Cecil.Lorna Lloyd. Drummond, (James) Eric, seventh earl of Perth (1876–1951), Oxford Dictionary of National Biography, Oxford University Press, 2004; online edn, January 2011 accessed 7 October 2014

Before the 1919 Paris Peace Conference in 1919, much work had been put into finding a suitable candidate for secretary-general of the newly-established League of Nations. Cecil, who played a key role in drafting the Covenant and organising the League, initially wanted a person with a background in politics for the post; there were several suitable candidates, but none accepted his proposal. He believed that only somebody of the highest ability would be sufficient for this role. However, after it transpired that the office holder would not be given as many powers as initially thought, Cecil reconsidered and sought to find somebody who was a well-trained civil servant and less known as a big political figure. He first approached Maurice Hankey, who for some time showed interest in the position but in the end rejected the offer only ten days before the Paris plenary session. In the event that Hankey would turn down the offer, Cecil and the American Edward M. House had developed a contingency plan to substitute Hankey with Sir Eric Drummond.

As early as 1915, Drummond expressed himself favourably towards the establishment of an international organisation. As such, Drummond was involved in negotiations regarding the establishment of the League of Nations. In addition, he was also a British national, which Cecil valued very highly. Drummond was an experienced diplomat and had earned a high reputation during his 19 years at the Foreign Office, which helped him to be considered the best choice available.

After some initial doubt in which Drummond expressed anxiety about organising the League, he finally accepted the proposal. At the Paris Peace Conference's plenary session on 28 April 1919, the conference accepted the appointment of Drummond as the first secretary-general of the League of Nations.

Establishment of permanent secretariat (1919–1920)

One of the secretary-general's major deeds was the establishment of a permanent and strictly international secretariat. No such thing had ever been attempted, and prewar secretariats had largely been confined to the national sphere as regards who supplied them and the civil servants who worked there. The creation of an international civil service was problematic, and administrative leaders thought it unthinkable that such a body would ever be united, loyal or efficient. By August 1920 the secretariat was fully established.Barros (1979), p. 84.

The secretariat's personnel came from over 30 countries and differed in language, religion and training. They were all appointed by the League, not by national governments. That once again underscored the difference between the new international body and previous national secretariats. In all, the secretariat came to consist of seven sections: a Mandate Section, an Economic and Financial Section, a Section for Transit and Communication, a Social Section, a Political Section, a Legal Section and an International Bureau Section.

Leadership style Drummond approached the role conservatively. His somewhat-subdued role in the British Foreign Office easily transferred over to the position of secretary-general. He was not a major political figure and so did not seek to turn the office into a reflection of his personality.Barros (1979), p. 34.

Drummond set about creating the administrative divisions for the League. He took no risk in his appointments to senior positions in the League of Nations and chose to appoint only members who supported their nation's government and gave the positions only to members of leading states.

Drummond was regarded as taking great care with issues and taking his position very seriously. He would read everything that came to his desk and would often call meetings regularly to discuss various issues. The meetings would often take place with various members of governments, which managed to established contact by his appointments to the League. Drummond thus became aware of sensitive information from various governments and nongovernmental organisations but became someone who could be trusted by various politicians worldwide.

He was widely regarded as shying away from the public and political spotlight, despite the high-profile nature of his position. He, however, was believed to be highly political behind the scenes but was often forced to do to appease various nations and because of often lacking support from many governments. One example was his 1920s dealings with Benito Mussolini's policies towards the Balkans, Africa and Europe. Drummond was unable to condemn any of Mussolini's policies publicly, as he did not have the backing of Britain and France. He wanted to maintain good relations with Italy, which helped to render him somewhat impotent.Barros (1979), p. 35.

Drummond had to perform his function behind the scenes of the League. He took great care to maintain world peace, as was hoped during the creation of the League, but he also appeased nations, rather than keeping them in check against international law. Despite the limitations coming from outside the League, he largely decided how he would run the office since he was very seldom under any kind of supervision. Drummond became regarded as a central hub within the League of Nations for most issues, and he would often pick the ones that interested him the most and delegate the lesser issues to his staff. He could thus be regarded as a leader who used the office for his own political interests.Barros (1979), p. 38.

National links of League officers The ideal underpinning the secretariat and those working there was one much resembling a Weberian understanding of bureaucracy, the idea of a non-political, neutral, effective and efficient bureaucrat.Dykmann, Klaas & Naumann, Katja, Changes from the "Margins": Non-European Actors, Ideas and Strategies in International Organizations, Leipzig, 2014, pp. 33–34; Barros (1979), pp. 60–61. Drummond admitted, "It is not always those who secure public praise to whom thanks are mainly due, and the work unknown to the public which is done behind the scenes is often a large factor in the success which has been obtained".Letter from Eric Drummond to Thanassis Aghnides, Genava, 12 December 1927 – adapted from Dykmann & Naumann, Changes from the "Margins": Non-European Actors, Ideas and Strategies in International Organizations, p. 34.

The ideal was not always upheld, and national preferences were never really abandoned. New under-secretaries-general who were appointed were more often than not of the same nationality, with candidates of smaller powers excluded. Drummond did not practice what he preached, which created small national islands from which the appointed officials conducted national, rather than international, politics.Barros (1979), pp. 68–69.

In 1929, the Assembly decided to make a thorough investigation of the secretariats, the International Labour Organization and the Permanent Court of International Justice. The minority report showed that the political influence in substantive issues by the secretariats and its main officers was enormous and could not be overlooked. However, that was not recognised by Drummond before the 1950s and until then had readily defended the notion of nonpolitical character of international secretariats.Barros (1979), pp. 71–74.

Despite the political character of the international civil service, the Secretariat came to be widely recognised as an instrument of the highest efficiency and the structural framework became a model for future international civil services, such as seen in the United Nations.

Role during crises During Drummond's secretary-generalship there were several crises that called for his attention. The League of Nations' Council relied on the willingness of its members to use their militaries to apply its collective security mandate during crises. Many of them centred on border disputes from the collapse of empires after the First World War. As the League got involved in such matters throughout the 1920s with members and non-members alike, Drummond was at the centre of the talks and the negotiations. The League was involved in disputes in Latin America, the Baltics and then China. Peter Yearwood argues that although Drummond was an idealist, as were most other people, he also 'made use' of his connections in politics.Peter J. Yearwood, Guarantee of Peace: The League of Nations in British Policy 1914–1925. (Oxford UP, 2009). Drummond was widely regarded as somebody who shied away from the public and political limelight, despite the high-profile nature of his position. He managed to achieve that but was believed to be highly political behind the scenes. He was often forced to appease various nations because he often lacked support from governments.Lloyd (1995): pp. 160–174.

One example was his dealings with Benito Mussolini's policies in the 1920s towards the Balkans, Africa and the rest of Europe. Drummond was unable to give a public condemnation of Mussolini's policies, as he had the backing of neither Britain nor France and wanted to maintain good relations with Italy. That was one of the many reasons that helped to render him a somewhat impotent leader.

Drummond had to perform his function behind the scenes of the League of Nations. He took great care to maintain world peace, as was hoped during the creation of the League of Nations, but he appeased nations, rather than keeping them in check against international law. Despite the limitations coming from outside the League of Nations, he largely decided how he would run the office within it, since he was very seldom under any kind of supervision. He became regarded as a central hub within the League of Nations for most issues, and would often pick the ones that interested him the most and delegate the lesser issues to his staff. He could thus be regarded as a leader who used the office for his own political interests.