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Altitude sickness is typically mild but can sometimes turn very serious − a high-altitude medicine physician explains how to safely prepare

Brian Strickland, Senior Instructor in Emergency Medicine, University of Colorado Anschutz Medical Campus Equipped with the latest gear and a thirst for adventure, mountaineers embrace the perils that come with conquering the world’s highest peaks. Yet, even those who tread more cautiously at high altitude are not immune from the health hazards waiting in the thin air above. Altitude sickness, which most commonly refers to acute mountain sickness, presents a significant challenge to those traveling to and adventuring in high-altitude destinations. Its symptoms can range from mildly annoying to incapacitating and, in some cases, may progress to more life-threatening illnesses. While interest in high-altitude tourism is rapidly

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Why Egypt refuses to open its border to Palestinians forcibly displaced from Gaza

Liyana Kayali, Postdoctoral Research Fellow, University of Sydney Around 1.5 million Palestinian civilians are currently squeezed into the southern Gaza city of Rafah after repeatedly being forced by Israeli bombardment and ground assaults to evacuate further and further south. The town, which originally had a population of 250,000, is now host to more than half of Gaza’s entire population. They are sheltering in conditions the UN’s top aid official has called “abysmal”, with disease spreading and famine looming. In a military onslaught the International Court of Justice has ruled a plausible case of genocide, Israel has so far killed over 29,000 Palestinians in the

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Javier Milei: Argentina’s new president presses ahead with economic ‘shock therapy’ as social unrest grows

Sam Halvorsen, Reader in Human Geography, Queen Mary University of London; Sebastián Mauro, Associate professor, Universidad de Buenos Aires Only weeks into his term, Argentina’s new president, Javier Milei, seems to be making good on his promise to put a chainsaw to the country’s crisis-ridden economy. In his inaugural address, Milei told the nation: “There is no alternative to shock.” He dissolved half of the country’s ministries days later, and implemented a 50% devaluation of the peso. But amid massive spending cuts, prices continue to spiral. Argentina’s annual rate of inflation has reached a three-decade high of 254.2%. Milei blames the poor economy on years of

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As war in Ukraine enters third year, 3 issues could decide its outcome: Supplies, information and politics

Tara Sonenshine, Edward R. Murrow Professor of Practice in Public Diplomacy, Tufts University In retrospect, there was perhaps nothing surprising about Russia’s decision to invade Ukraine on Feb. 24, 2022. Vladimir Putin’s intentions were, after all, hiding in plain sight and signaled in the months running up to the incursion. What could not be foreseen, however, is where the conflict finds itself now. Heading into its third year, the war has become bogged down: Neither is it a stalemate, nor does it look like either side could make dramatic advances any time soon. Russia appears to be on the ascendancy, having secured the latest major battlefield

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Cult of the drone: At the two-year mark, UAVs have changed the face of war in Ukraine – but not outcomes

Paul Lushenko, Assistant Professor and Director of Special Operations, US Army War College Unmanned aerial vehicles, or drones, have been central to the war in Ukraine. Some analysts claim that drones have reshaped war, yielding not just tactical-level effects, but shaping operational and strategic outcomes as well. It’s important to distinguish between these different levels of war. The tactical level of war refers to battlefield actions, such as patrols or raids. The operational level of war characterizes a military’s synchronization of tactical actions to achieve broader military objectives, such as destroying components of an adversary’s army. The strategic level of war relates to the way these military

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Why the United States needs NATO – 3 things to know

Klaus W. Larres, Professor of History and International Affairs, University of North Carolina at Chapel Hill Former President Donald Trump has long made it clear that he deeply resents NATO, a 75-year-old military alliance that is composed of the United States and 30 other countries, including Canada, the United Kingdom, Germany and France. Trump escalated his criticism of NATO on Feb. 10, 2024, when he said that, if he is elected president again in November 2024, the U.S. would not defend any member country that had not “paid up.” Trump also said that he would encourage Russia and its president, Vladimir Putin, “to

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Navalny dies in prison − but his blueprint for anti-Putin activism will live on

Regina Smyth, Professor of Political Science, Indiana University Long lines of Russians endured subzero temperatures in January 2024 to demand that anti-Ukraine war candidate Boris Nadezhdin be allowed to run in the forthcoming presidential election. It was protest by petition – a tactic that reflects the legacy of Alexei Navalny, the longtime Russian pro-democracy campaigner. Authorities say Navalny, a persistent thorn in the side of Russian President Vladimir Putin, died in prison on Feb. 16, 2024. For more than a decade, Navalny fought Russian authoritarianism at

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Biden-Xi meeting: 6 essential reads on what to look out for as US, Chinese leaders hold face-to-face talks

Matt Williams, The Conversation U.S. President Joe Biden sits down with his Chinese counterpart Xi Jinping on Nov. 15, 2023, in the first head-to-head talks between the leaders of the world’s two biggest economies in over a year. During that time, relations between the two countries have not been their best – a spat over a purported spy balloon over American airspace in February only added to a list of grievances that includes Biden’s comments over Taiwan, Beijing’s support of Russia, confrontations in the South China Sea and more generally a competition for influence and trade around the world. Yet,

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As calls grow louder for a Gaza ceasefire, Netanyahu is providing few clues about his strategy or post-war plans

Ian Parmeter, Australian National University More than five weeks into Israel’s war with Hamas, Prime Minister Benjamin Netanyahu has not outlined his future vision for Gaza. He has said many times the war will continue until Hamas is eradicated. But his battle plan for achieving that objective is far from clear. As calls grow louder around the world for a ceasefire, Israel is finding itself under increasing pressure to respond. This is placing more scrutiny on Netanyahu’s overall strategy for prosecuting the war – and what could happen after it’s over. Constantly in the background of Israel’s military campaign is

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What do people in the Pacific really think of China? It’s more nuanced than you may imagine

Denghua Zhang, Australian National University and Bernard Yegiora, Divine Word University China has been steadily increasing its footprint in the Pacific in recent years as it attempts to deepen its influence and challenge the traditionally strong relationships many countries have with the US and Australia. But what do people in the Pacific think of China’s expanding interest and engagement in the region? To find out, we conducted surveys with local residents in two countries where China has focused its outreach in recent years – Papua New Guinea and Solomon Islands. Both countries have embraced a foreign policy professing to be

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Israel-Hamas war: there is an important difference between a humanitarian pause and a ceasefire

Malak Benslama-Dabdoub, Royal Holloway University of London The British Labour Party leader, Keir Starmer, has come under fire from members of his own party for refusing to call for a ceasefire in the Hamas-Israel war, instead pushing for a humanitarian pause in the conflict. As a result, 50 Labour councillors have quit the party. The controversy raises the question of the difference between a humanitarian pause and a ceasefire. The conflict began in the early morning of October 7 2023 when armed Hamas fighters launched a surprise attack against Israel, killing at least 1,400 Israelis and taking more than 200

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International reaction to Gaza siege has exposed the growing rift between the West and the Global South

Jorge Heine, Boston University The lopsidedness was stark: 120 countries voted in favor of a resolution before the United Nations on Oct. 26, 2023, calling for a “humanitarian truce” in the war in Gaza. A mere 14 countries voted against it. But the numbers tell only half the story; equally significant was the way the votes fell. Those voting against the resolution included the United States and four members of the European Union. Meanwhile, about 45 members abstained – including 15 members of the EU, plus the United Kingdom, Canada, Australia and Japan. Seldom has the isolation of the West

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In the Israel-Hamas war, children are the ultimate pawns – and ultimate victims

Omer Bartov, Brown University In 1903, a local mob killed 49 Jews, including several children, and raped and wounded 600 others, in the city of Kishinev, then part of the Russian Empire. These three days of violence later became known as the Kishinev pogrom. A few days later, the Jewish-Russian poet Hayim Nahman Bialik published a Hebrew poem that every Israeli school child still knows today. I am a scholar of the Holocaust and genocide. When thinking about the unfolding Israel-Hamas war, I am reminded of this Bialik poem, “On the Slaughter.” It laments Jewish helplessness and victimhood – and

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