At least three guards were killed when riot police were sent in to storm the Etapa 2 juvenile detention center outside Guatemala City, where members of the notorious Barrio 18 narco-gang had seized cell-blocks and taken hostages March 20. Riot troops were ordered to take the facility despite desperate pleas from guards being held hostage. Latin American Herald Tribune reports that before the bloody climax, hostages had shouted from windows, urging authorities to negotiate with their captors. "We are begging and the government doesn't want to do anything," one reportedly cried. "They give no attention to our lives."

More than 250 human skulls were unearthed from a mass grave outside Mexico's port city of Veracruz, state prosecutor Jorge Winckler announced March 14. Winckler said the remains are of cartel victims, slain some years earlier. While details on how this latest find came to light were not forthcoming, the survivors' group Colectivo Solecito has been carrying out its own search for "narco-graves" in Veracruz state, hoping to discover the remains of disappeared loved ones. Last year, the collective discovered some 30 clandestine graves, but this would be the biggest such gruesome discovery yet.

Most of President Barack Obama's actions to forestall climate change were wiped out March 28 as President Donald Trump revoked or revised limits on carbon emissions from power plants and opened federal lands to coal mining. Trump's executive order applies to Obama's Clean Power Plan, and an October 2015 rule entitled "Carbon Pollution Emission Guidelines for Existing Stationary Sources: Electric Utility Generating Units." Even federal planning for the planet's warming climate will no longer be allowed, as Trump revoked Obama's executive order of 2013 requiring federal agencies "to integrate considerations of the challenges posed by climate change effects into their programs, policies, rules and operations to ensure they continue to be effective, even as the climate changes."

Bolivia's President Evo Morales signed into a law March 8 a bill passed by the country's congress that nearly doubles the area of national territory open to coca leaf cultivation. Law 906, or the General Law of Coca Leaf, envisions new legal commerical and industrial uses for the leaf. It replaces the far more restrictive Law 1008, passed during the Reagan-led drug war militarization of the Andes in 1988—when Bolivia's democratic transition after years of military rule was still new. "The hour has arrived to bury Law 1008, which sought to bury coca leaf in Bolivia," the presidency said in a statement. "This is an historic day." The signing ceremony at the presidential palace was witnessesed by a delegation of coca-growers.

A suspected chlorine gas attack on an underground hospital in the rebel-held north of Syria's Hama governorate killed three people and injured dozens on March 25, as Assad regime forces attempt to drive back a rebel offensive in the area, local medical personnel told independent news website Syria Direct. A helicopter dropped a large yellow canister through the concrete roof of the Latamna Surgical Hospital, according to hospital personnel. Chlorine gas was then released, according to the account, spreading throughout the the underground facility. Trapped in the poorly ventilated facility, 35 people were injured—14 of them medical personnel—and three were reportedly killed, including a surgeon. "One of the victims smelled as if he just came out of a swimming pool," said Bilal Abdul Kareem of On the Ground News, reporting from the scene in the aftermath of the attack.

The US military will keep an unspecified number of ground troops in Libya to help local forces further degrade the ISIS faction there, and also seeks greater scope to target insurgents in Somalia, Africa Command chief Gen. Thomas Waldhauser told reporters at the Pentagon March 24. "We're going to maintain a force that has the ability to develop intelligence, work with various groups as required, or be able to assist if required...to take out ISIS targets," said Gen. Waldhauser, boasting that the ISIS presence in coastal Libya has fallen below 200 from an estimated 5,000 only a year ago. In Somalia, where al-Qaeda affiliate Shabaab remains a threat, Waldhauser hopes the Trump White House will loosen rules of engagement established by the Obama administration to avoid "collateral damage." "I think the combatant commanders, myself included, are more than capable of making judgments and determinations on some of these targets," he said. (Military Times, March 24)

Iraqi security forces suspended military operations to retake western Mosul from ISIS due to the increased number of civilian casualties after a series of deadly coalition air-strikes. An estimated 200 civilians were killed were killed in US-led air-raids over the past days, with the deadliest incident in al-Jadida neighborhood March 17, according to on-the-ground monitoring group Mosul Eye. Reports indicate a coalition air-strike hit three houses filled with explosives laid by ISIS where the militants had gathered large numbers of civilians as human shileds. The Pentagon says the strike on the target was called in by Iraqi commanders. If confirmed, the series of air-strikes would rank among the highest civilian death tolls in a US-led air mission since the United States went to war in Iraq in 2003. The Iraqi Observatory for Human Rights reports that more than 500 civilians have been killed in coalition air-strikes in the Mosul campaign. (Military Times, NYT, The Guardian, Rudaw, Kurdistan24, Iraqi News)

Under Secretary of State for Political Affairs Thomas A. Shannon Jr on March 24 issued a presidential permit to TransCanada Keystone Pipeline, authorizing the Canadian company to construct, operate and maintain pipeline facilities at the US-Canadian border in Phillips County, Mont., for the importation of crude oil from Canada's tar sands. The Trump administration's State Department is headed by former ExxonMobil CEO Rex Tillerson, who backs the pipeline. However, Tillerson recused himself from the decision after environmental groups objected that it would be a conflict of interest for him to decide the pipeline's fate.