Slava Vakarchuk: A rock star on the frontline

Frances O'Grady: How can workers defend their interests?

Eduard Heger, Prime Minister of Slovakia

Bill Browder: Sanctioning Russia

Zoltán Kovács: Whose side is Hungary really on?

Jim Green: Has Nasa lost its way?

Senator Mark Warner: Are we facing a new Cold War?

Victoria Spartz: Does her party share her commitment to defeating Putin?

Inger Ashing: Is the war in Ukraine overshadowing other crises?

Stella Moris: Will Julian Assange be extradited to the US?

Franklin Graham: An era of moral decline?

Iván Duque: Has Colombia's president failed?

Jens Stoltenberg: Is Nato being undermined by internal divisions?

Luis Lacalle Pou: Why is Uruguay moving to the right?

Danica Roem: America's culture wars

Serhii Plokhy: How Putin weaponises history

Dr Njoki Ngumi – Artist and film-maker

Fawzia Koofi: Do Afghans still have hope?

Vassily Nebenzia: Is Putin's plan failing?

Josef Aschbacher: Is Europe losing the space race?

Nicu Popescu: How can Moldova protect itself?

Olha Stefanishyna: Will Kyiv get the support it needs?

Semyon Bychkov: Artists speaking out against Putin

João Vale de Almeida: Have UK-EU relations become toxic?

Henry Huiyao Wang: Is China exposing its vulnerabilities?

K. Shanmugam: Will Singapore have to choose between the US and China?

Lord Patten: Were promises to Hong Kong broken?

Steve Thompson: Rugby's traumatic legacy

Nury Turkel: Will the world stand up for China's Uyghurs?

Ibram X. Kendi: America's unhealed racial wounds

Archbishop Bashar Matti Warda: Does Christianity in Iraq have a future?