NATO on April 1 began a two-day exercise, briging more than 100 US Air Force personnel, along with F-15 fighter jets and a Germany-based Airborne Warning and Control System (AWACS) craft, to former Soviet air bases in Lithuania. Denmark is also sending six F16 fighter jets to the Baltic as part of an expanded NATO air policing mission, with regular patrols to begin May 1. The incidence of Russian jets flying close enough to Baltic airspace this year to prompt NATO jets being scrambled has increased to about once a week, according to Lithuania's defense ministry. NATO jets were scrambled about 40 times in both 2012 and 2013; in 2004, the year the Baltic republics joined NATO, it only happened once.

A judge for the US District Court for the District of Columbia dismissed a lawsuit (PDF) on April 4 brought against officials of the Obama administration for the 2011 drone strikes that killed three US citizens in Yemen. The lawsuit was specifically brought against former defense secretary Leon Panetta, former CIA director David Petraeus and two commanders in Special Operations forces. Judge Rosemary Colleyer found that there were serious constitutional issues in the case but that "this case would impermissibly draw the court into 'the heart of executive and military planning and deliberation.'" Three US-born alleged al-Qaeda leaders and propagandists, Anwar al-Awlaki, his son Abdulrahman al-Awlaki, and Samir Khan, were killed by the drone strikes in 2011. The elder al-Awlaki has been linked to several attacks on the US, including an attempt on Christmas Day 2009 on a Detroit-bound airplane.

Colombian President Juan Manuel Santos on April 4 told onlookers in the Pacific port of Buenaventura that 136 members of dangerous criminal gangs had been captured by security forces over the last month and a half, contributing to a recent drop in violence. Santos also told the crowd that the city had not seen a homicide for the last 19 days. Additionally, he said that 32 of the last 48 days had passed without a murder in Buenaventura. Santos also boasted of $100 million worth of investment in social programs for the city. This government has "decided to change the situation in Buenaventura and we are doing it with actions, not words," he said. But he added that the response to recent horrific violence in the city is not necessarily to "look for those responsible" but to find "solutions" to social problems.

Thousands of miners blocked highways in five departments of Bolivia for five days starting March 31 to protest a pending new mining law. Members of mining cooperatives installed at least 10 roablocks in the departments of  La Paz, Cochabamba, Santa Cruz, Potosí and Oruro. At least three were killed in clashes with the National Police. The protests were called off after the government agreed to suspend the legislation, which had already cleared the lower-house Chamber of Deputies. The bill sought to bar the cooperatives from seeking private investment, restricting them to contracts with the Bolivian state. In response to the protests, President Evo Morales is drafting a new bill that would allow private contracts while restricting investment by foreign companies. (Los Tiempos de Cochabamba, April 5; EFE, AFP, El Universal, Venezuela, April 4; EFE, April 3; El Deber, Santa Cruz, Reuters, April 1)

The US Defense Department is dispatching a naval vessel to the Black Sea to conduct military exercises with allies in the region, as well as deploying additional Marines to enlarge a "rotational crisis response force" in Romania, the Pentagon announced April 3. The Special Purpose Marine Air-Ground Task Force Crisis Response Force, based at Moron Air Base in Spain, is being increased from 500 to 675 and deployed to Romania "to allow greater flexibility." The Pentagon denied that the decision to send the additional Marines to Romania is related to developments in Ukraine. (American Forces Press Service, April 3)

An inquiry by the interim Ukrainian government on April 2 implicated members of the special Berkut riot police in the deaths of 76 anti-government protesters in Kiev in February. Interior Minister Arsen Avakov presented initial findings before reporters indicating twelve members of the elite police force as snipers and arrested three on suspicion of shooting deaths. Avakov also identified Maj Dmytro Sadovnyk as commander of a Berkut unit suspected of the shooting death of seventeen protesters. Most of the protester shootings occured near the main protest camp on Independence Square. Ukrainian Security Service chief Valentyn Nalyvaychenko has accused Russian Federal Security Service (FSB) operatives of coordinating operations against protesters. In addition to allegations of Russian involvement in suppressing protests, a top security official for the interim government accused ousted President Viktor Yanukovych's government of hiring gangs of thugs to terrorize protesters and opposition groups.

Russian President Vladimir Putin reiterated Moscow's support for Syria's Bashar al-Assad in an April 2 message delivered by a visiting delegation of the Russia-based Imperial Orthodox Palestine Society, headed by the society's chairman Sergei Stepashin. In the message, Putin hailed Assad's war against "international terrorism" that he asserted is "backed" by Western nations. (Xinhua, April 2) The message comes amid reports from Jane's Defense Weekly that Assad's military started using longer-range Russian Smerch and Uragan rockets for the first time in February. Ruslan Pukhov, an adviser to Russia's Defense Ministry and head of the Center of Analysis of Strategies and Technologies, confirmed that Moscow is supplying a "lifeline" of ammunition and parts for tanks, armored vehicles and helicopters to Damascus. Alexei Malashenko, Middle East analyst at the Moscow Carnegie Center, said: "Russia is now doing everything to ensure that Assad wins convincingly. If Russia can show it's capable of carrying out its own foreign policy, regardless of America’s wishes, it will be a major achievement for Putin." (Bloomberg, April 2)

The death toll in the three-year Syrian conflict has exceeded 150,000, a British-based human rights group announced on April 2. According to the Syrian Observatory for Human Rights (SOHR), 150,344 persons have died since the uprising began in March 2011. The death toll includes 51,212 civilians, including 7,985 children and 5,266 women. The numbers do not include the 18,000 detainees in regime prisons or the "thousands who disappeared during regime raids and massacres." SOHR estimates that the non-Syrian casualties to be approximately 70,000 more than the documented number, "due to the extreme discretion by all sides of the human losses caused by the conflict and due to the difficulty of communication in Syria." Finally, SOHR called on both sides to peaceably end the conflict.