Despite—or perhaps partly because of—threats from ISIS militants, a record 15.5 million Shi'ite pilgrams have converged on Karbala for Arbaeen. The holy day marks the end of the 40-day period of mourning after the anniversary of the death of Imam Hussein in 680 CE, and has been punctuated by sectarian terror in Iraq in recent years. One was killed and four wounded in mortar attack on the outskirts of the city Dec. 12. Earlier this week, three were killed and four wounded in a bomb attack on a Baghdad encampment of pilgrims headed for Karbala. Another three were in a stampede as they crossed the border from Iran.

A massive oil spill from a stricken tanker is threatening endangered dolphins and other rare wildlife in the world's largest mangrove forest, Bangladesh officials warned Dec. 11. Rescue vessels have now salvaged the tanker, but the slick had already spread to a second river and a network of canals in the Sundarbans, a UNESCO World Heritage Site, which straddles India and Bangladesh. "It's a catastrophe for the delicate ecology of the Sundarbans," the area's chief forest official Amir Hossain told the AFP news agency. "The oil spill has already blackened the shoreline, threatening trees, plankton, vast populations of small fishes and dolphins." The tanker was carrying more than 350,000 liters of oil when it collided with another vessel and sank in the Sundarbans' Shela River, home to the endangered Ganges dolphins. Forest and security officials are on high alert amid fears the spill may cross over to the Indian side of the Sunderbans, home to Bengal tigers, ridley turtles, and other rare flora and fauna. The Sunderbans is also an important feeding area for migratory birds from Siberia. (Radio Australia, Al Jazeera, Business Standard, India, Dec. 11)

Spain's conservative-led parliament, the Cortes, passed an anti-protest bill on Dec. 11 despite harsh criticism from opposition politicians and activist groups, who say it violates the right to demonstrate, limits freedom of expression, and gives undue power to police. The measure, dubbed the "Ley Mordaza" (Gag Law), limits demonstrations to officially permiited gatherings and imposes heavy fines on unauthorized protesters. It also bans taking photos of police during protest demonstrations. Spain has seen a rising tide of mostly peaceful street protests and strikes against Prime Minister Mariano Rajoy's austerity program, which includes harsh cuts to public health and education.

Air-strikes on landmark buildings at the tail end of the Israeli military's "Operation Protective Edge" in Gaza in August were a deliberate and direct attack on civilian buildings and amount to war crimes, Amnesty International charges in a new report. Entitled "Nothing is Immune: Israel's Destruction of Landmark Buildings in Gaza," the report (PDF) provides evidence that attacks on four multi-storey buildings during the last four days of the conflict were in contravention of international humanitarian law, and calls for them to be independently and impartially investigated. "All the evidence we have shows this large-scale destruction was carried out deliberately and with no military justification," said Philip Luther, director of the Middle East and North Africa Program at Amnesty International. "Both the facts on the ground and statements made by Israeli military spokespeople at the time indicate that the attacks were a collective punishment against the people of Gaza and were designed to destroy their already precarious livelihoods."

On Dec. 3, a group of Shuar indigenous women from Ecuador's Amazon arrived in Quito to demand an investigation in the death of community leader José Tendetza Antún, who was planning on travelling to Peru for the Lima climate summit this month to press demands for cancellation of a mining project. Tendetza represented that Shuar community of Yanúa, El Pangui canton, Zamora Chinchipe province (see map). He disappeared Nov. 28 while on his way to discuss the mine matter with officials in the town of Bomboíza. The community launched a search, and his body was found Dec. 2 by local gold-miners. But the remains were turned over directly to the authorities, and quickly buried. Shuar leaders are demanding they be exhumed, and an autopsy conducted. Shuar leader Domingo Ankuash said based on what the miners said, he believes Tendetza had been beaten to death, and perhaps tortured.

Protests held in the Bahraini island city of Sitra Dec. 6 against an agreement signed between the kingdom and Great Britain to establish a new military base in the Persian Gulf state. Bahraini opposition figures, including members of the main Shi'ite party, al-Wefaq National Islamic Society, also expressed outrage over the deal. (Tasnim, Iran, Dec. 7) The base, at Mina Salman Port in Bahrain, will host Royal Navy vessels including destroyers and aircraft carriers. It is to be Britain's first permanent base in the Middle East in over 40 years. UK Foreign Secretary Philip Hammond said the new base shows Britain's commitment to a "sustained presence east of Suez"—referring to the wording of a 1968 decision to close bases east of Suez by 1971. (BBC News, Dec. 6)

Over 80 people were treated for respiratory problems on both sides of the Israel-Jordan border Dec. 4 following a massive oil spill that flooded the highway leading into Eilat. The vast majority of those affected were in Jordan. The leak, near the village of Be'er Ora, was caused by a leak from the Trans-Israel Pipeline, that runs between the Red Sea port of Eilat and the Mediterranean hub of Ashkelon. Be'er Ora sits in the sparsely populated Arava region, home to multiple nature reserves that protect indigenous flora and fauna, including rare acacia trees and over 280 deer. The Environmental Protection Ministry said that it has so far removed 6,000 tons of contaminated soil from the Avrona nature reserve, in an attempt to contain the impact of the disaster. The Eilat Ashkelon Pipeline Company now says the flow of oil has been halted, and that the breach was likely due to a "maintenance failure." The Environment Ministry has dispatched its "Green Police"  to investigate the cause of the incident. Ministry official Guy Same said the spill could take years, to fully clean up. (Times of Israel, Times of Israel, Dec. 6; Times of Israel, ThinkProgress, Dec. 4)

The Pakistani military said Dec. 6 that it killed Adnan Shukrijumah, a senior al-Qaeda operative, in a raid at Shin Warsak in the Taliban-stronghold tribal agency of South Waziristan. (See map.) One soldier was also killed during the operation. The militants were supposedly under the protection of local Taliban leader Mullah Nazir. (Long War Journal, Dec. 6) Four days earlier, at least five Taliban militants were killed in a US drone strike in Shirzad district of Afghanistan's Nangarhar province. (See map.) (News Tribe, Pakistan, Dec. 2) The Pakistani Taliban, known as the Tehreek-e-Taliban Pakistan, have been using Afghan territory as a rearguard but are now under pressure from a renewed effort against them by Kabul and its international backers. According to Reuters, their leaders have had to flee towns along the border for refuge in remote mountain villages. An air-strike on Nov. 24 hit a house where Pakistani Taliban leader Mullah Fazlullah had stayed the night before and killed two commanders, one Taliban source said. The Taliban in this area are also facing opposition from local tribesmen, who have been organized into a paramilitary force. Kunar governor Shuja-ul Mulk Jalala said: "Villagers, backed by a unit of Afghan police and army launched an operation against the Pakistani Taliban. Villagers asked for some support and weapons to fight them. Tribal elders complained that there were no difference between good or bad Taliban and decided to drive them out." (Reuters via Samaa, Pakistan, Dec. 4)