Mental health is a core part of the Sustainable Development Goals (SDGs) agreed by the United Nations General Assembly. This follows on from the World Health Organization's 2013 Global Action Programme. The World Bank is also expected to give mental health greater priority. Moreover, mental health is now seen as essential in disaster relief management. However, although global policy towards mental health has improved, there are only rare examples where this has been translated at scale into action. There are, nonetheless, reasons for optimism in the new policy background, in the many innovative practical developments around the world and in the way that evidence is being gathered and learning shared. The understanding that mental health is intimately connected to physical, social, environmental and economic health – which is so evident in the SDGs – represents a major change in mind-sets globally.

As fellow human beings uproot their lives in search of protection, and for those who survive to reach European shores, many countries are faced with an unprecedented, highly complex challenge of managing huge and immediate need. Clearly, immigration agencies are front line in this scenario, but they are closely followed by accommodation, subsistence, community and health agencies. It is widely recognised that the mental health burden of asylum seekers is large and the stir of growing interest at a clinical level in addressing that burden is encouraging. Mental health services have been aware of asylum seekers and refugees for decades but we have grappled with our role, been confused by the relevance of a political dimension and overwhelmed with how to manage diverse need, in the face of endless competing demands. Mental health services for asylum seekers and refugees have largely evolved in many and varied ways, dependent on local need and interest.

Global events like wars and natural disasters have led to the refugee population reaching numbers not seen since the Second World War. Attitudes to asylum have hardened, with the potential to compromise the mental health needs of asylum seekers and refugees. The challenges in providing mental healthcare for asylum seekers and refugees include working with the uncertainties of immigration status and cultural differences. Ways to meet the challenges include cultural competency training, availability of interpreters and cultural brokers as well as appropriately adapting modes of therapy. Service delivery should support adjustment to life in a foreign country. Never has the need been greater for psychiatrists to play a leadership role in the area.

Approximately 17 000 individuals have claimed asylum in Malta over the past 10 years. Maltese law stipulates mandatory detention. Here, we review Malta's asylum procedures and detention policy, and explore the impact of detention on mental health. We review the current mental health services and make recommendations to help fill the gaps.

The number of people seeking refugee status in Ireland is increasing year on year and the burden of mental illness experienced by refugees and asylum seekers is high. The College of Psychiatrists of Ireland has recommended the establishment of a number of specialist refugee mental health teams. In this paper we discuss the Irish asylum system, the Irish evidence regarding mental illness in this population, and current health service policy regarding refugee mental health. We propose a model of specialist refugee mental healthcare delivery.

Brunei's new mental health legislation was implemented on 1 November 2014. This is a much needed and long overdue development which has required significant multi-agency consultation and commitment. This paper describes how the 2014 Mental Health Order was prepared and provides a summary of its contents. The future direction and challenges facing its full implementation are discussed.

Fiji's Mental Treatment Act 1940 had become outdated, in part because it concentrated on treatment within a psychiatric hospital. The Mental Health Decree 2010 covers not only in-patient treatment but also the promotion of mental health, the prevention of mental illness, and the community-based and rehabilitative aspects of mental healthcare, as well as human rights issues.

New Zealand has an established history of mental health legislation that sits within a framework of human rights, disability and constitutional protections. We outline a brief history of mental health legislation in New Zealand since its inception as a modern state in 1840. The current legislation, the Mental Health (Compulsory Assessment and Treatment) Act 1992, defines mental disorder and the threshold for compulsory treatment. We describe its use in clinical practice and the wider legal and constitutional context which psychiatrists need to be aware of in their relationships with patients.

There is a widening mental health treatment gap for children and adolescents in sub-Saharan Africa. The region has few economic or human resources dedicated to the mental health of children and young people. The World Health Organization's Mental Health Gap Action Plan and the push for mental health to be included in the Millennium Development Goals have raised the profile of child mental health but comparatively few studies have estimated prevalence rates or assessed needs or tested interventions in African countries. In most countries there is no clear pathway to access treatment, especially in-patient facilities. This article considers these issues from clinical, educational and research perspectives.

The Young Psychiatrists' Network is a movement of early-career psychiatrists that was established in 2009 with the principles of peer regulation, lack of hierarchy and transparency. From humble beginnings as a small group of professionals in Eastern Europe, the Network is expanding into a globally inclusive platform. Future challenges, such as retention of the Network's core values, are now being debated.