Germany’s well-publicised reluctance to provide Ukraine with Leopard tanks has exposed deepening divisions within NATO on the nearly year-long war with Russia.

How involved does the West want to get in the war, and what types of weapons should it provide Ukraine? Is arming Ukraine an obligation or a risky move?

Ukraine’s leaders have long made their desire for more sophisticated weapons clear. And last weekend, presidential adviser Mykhailo Podolyak lashed out at what he called the “global indecision” over the tanks, tweeting “today’s indecision is killing more of our people”.

So why can’t the West agree on how much military support to send to Ukraine?

Strategic and defence expert Matthew Sussex says the back-and-forth on tanks is proof NATO lacks a coherent strategy for the war. And this is endangering the West’s credibility when it comes to backing its strong words with actions.

The West must realise hard compromises are now needed, Sussex writes, even if it means a loss of domestic political capital and the danger of Russian reprisals.

Germany’s decision paralysis has clearly hurt perceptions of NATO unity – and it isn’t helping the Ukrainians one bit, either.

Justin Bergman

Senior Deputy Politics + Society Editor

Why can’t the West agree on how much military support to send to Ukraine?

Matthew Sussex, Australian National University

Germany’s dithering over whether to send tanks to Ukraine reflects deepening divisions in NATO over how involved it wants to get in the war. The West needs a clearer strategy.

Peru protests: What to know about Indigenous-led movement shaking the crisis-hit country

Eduardo Gamarra, Florida International University

Thousands of demonstrators have descended on Lima amid violent clashes with police. The protest movement could be taking cues from earlier mobilizations in neighboring Bolivia.

The world’s carbon price is a fraction of what we need – because only a fifth of global emissions are priced

Bei Cui, Monash University; Nga Pham. CFA, Monash University; Ummul Ruthbah

It’s far easier to see how the stock market is doing than it is to find out the global price of carbon. That has to change.

Ozempic helps people lose weight. But who should be able to use it?

Natasha Yates, Bond University

You’ve probably heard of the drug semaglutide or Ozempic, the diabetes medication being used for weight loss. So what are the risks and benefits? And who should have access to it?

Our Solar System is filled with asteroids that are particularly hard to destroy, new study finds

Fred Jourdan, Curtin University; Nick Timms, Curtin University

Rubble pile asteroids are like giant space cushions, floating around the Solar System for billions of years. Here’s what that means for planetary defence.

How to talk to someone about conspiracy theories in five simple steps

Daniel Jolley, University of Nottingham; Karen Douglas, University of Kent; Mathew Marques, La Trobe University

Attacking the beliefs of conspiracy theorists is only likely to make them dig their heels in.

Nigeria’s 2023 presidential election: 10 factors that could affect the outcome

Jideofor Adibe, Nasarawa State University, Keffi

Ethnicity, religion, money, history and insecurity are among the forces that will be at play.

Why the tween years are a ‘golden opportunity’ to set up the way you parent teenagers

Catherine Wade, University of Sydney

Children between 10 and 12 are still more influenced by their parents than their friends. This makes it the ideal time for parents to set the tone for when their child crosses over into adolescence.

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