In this task, you are given news articles and you need to generate a highlight, i.e., a short summary, with a maximum length of 10 lines.

Q: Oceanside, New York (CNN) -- Deployed to a volatile outpost in southern Afghanistan where U.S. Marines routinely face a mix of skirmishes and hidden explosives, Greg Buckley Jr. sensed that an attack was imminent. And he knew that it would come from within. The 21-year-old Marine was posted to Garmsir in Helmand Province, where he was training local security forces as part of NATO's planned withdrawal in 2014. It was during a static-filled phone call to his father over the summer that the Long Island native mentioned a run-in he had with an Afghan trainee while on guard duty. NATO releases details of brazen raid on base in Afghanistan . The encounter was the first in which the Buckley family's eldest son seemed to sense something was wrong, according to what he told his family in phone conversations and a letter. "The guy turned around and said to Greg, 'We don't want you here. We don't need you here,'" his dad said. "Greg turned around again and said, 'Why would you say that?'" according to Greg Buckley Sr. But the trainee apparently wouldn't relent, repeating the phrases for hours over the course of a night in which the young Marine was on guard watch. "Greg said, 'I thought I was going to lose my mind,'" his father said. "Pitch black out, and all he kept saying over and over again is, 'We don't want you. We don't need you. We don't want you.'" "It was just tormenting for him." The two men then finally confronted each other, yelling until a group of officers separated them, he told his father. "One of his superiors came over and had Greg apologize to the guy," said the elder Buckley. The 21-year-old agreed and extended his hand, but the man refused. About a month later, Greg phoned his father again. "He told me if I have to stay here until November... I'm not going to come home." Greg also asked his father to prepare to tell his mother and his two younger brothers that he'd be killed. "I don't understand," his father said. "Out in the field?' "No, in our base," Greg replied. 4 NATO troops killed in 'insider' attack in Afghanistan . On August 10, 2012, Greg Buckley Jr. was gunned down by the very forces he had been training, just days after learning that he was to head home early. "It was only two days he had left there in Afghanistan," his father told CNN. The phenomenon is known as "green-on-blue," due to a color-coding system used by NATO. It has become disturbingly more frequent in Afghanistan, with more than 50 NATO troops killed this year by local forces, the first time that's happened in a single year in the U.S.-led war. Last year, 35 people died in such insider attacks, and even less the year before, according to NATO figures. The killings have prompted suspensions of training new recruits while eroding the trust between NATO and its Afghan allies. The gunman involved in Greg's death attacked from inside his outpost and killed two other fellow Marines, his dad said. But Greg Sr. said his son had informed his superior officers that "one day they are going turn around and turn those weapons on us." CNN cannot independently confirm that Greg informed superior officers. Calls and emails to NATO's International Security Assistance Force in Afghanistan were not immediately returned. More than a decade after the war began, the Buckley family is now struggling to cope with the loss of its eldest son. More than 2,000 other U.S. service members have been killed in Operation Enduring Freedom. "It's not really day-by-day," said Greg's mother, Marina Buckley. "It's more minute-by-minute." Back in Oceanside, the Buckley family on Friday attended the town's first home football game, where their fallen son had intended to watch his youngest brother play varsity for the first time. "Greg was supposed to be home for this game," said Justin, 17, who wore the number 30 on his back, Greg's old basketball number. "I would tell him I love him and I miss him." The senior running back, who donned a camouflage jersey along with his team, broke to the outside on Friday for a 25-yard score that helped cement the Sailors' improbable second-half comeback against top-ranked East Meadow. After crossing into the end zone, Justin raised his hand to salute -- honoring his fallen brother. NATO admits killing civilians in Afghan strike .

A: Greg Buckley Jr. was gunned down by the forces he had been training .
"He told me, if I have to stay here until November... I'm not going to come home," his dad said .
The phenomenon is known as "green-on-blue" and is disturbingly more frequent in Afghanistan .
Buckley warned superiors an insider attack could happen, his father says; CNN could not confirm .
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Q: Seoul, South Korea (CNN) -- Four members of a group of 31 North Koreans who accidentally crossed over into South Korean waters on a fishing boat, have decided to defect to the South, despite Pyongyang's demands that they all be repatriated to the North, the South Korean Red Cross said. The defection of the four North Koreans could spark tensions on the peninsula, where joint U.S.-South Korea military drills have kicked off this week. North Korea had threatened to engulf Seoul in a "sea of flames," a day before the opening of the exercise. The South will return the remaining 27 members of the group through Panmunjom, a truce village on the ground border between the two sides, and send the fishing boat back through the waters in the West Sea on Friday, the Red Cross said. South Korea's intelligence agency questioned the North Koreans for almost a month since they crossed over in February before deciding to release the group, the aid agency said. There are currently more than 20,000 North Korean defectors in South Korea, according to the South's Unification Ministry. The number of annual defectors has risen dramatically since the turn of the century and continues to climb. Defectors who are forcefully repatriated to the North after attempting to cross over into third countries such as China, Mongolia or Southeast Asia are commonly sent to prison camps as a punishment. Many defectors who live in South Korea fear for the lives of their family or relatives who remain in the North.

A: A boat with a crew of 31 crosses into South Korean waters, the Red Cross says .
Four of the fishermen decide to stay in the South .
The number of defections has risen dramatically in the past decade .
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Q: (CNN) -- Nine civilians died in an attack on a luxury hotel in the Afghan capital, a government official said Friday. The dead were a mix of Afghans and foreigners, children and adults, according to Gen Mohammad Ayoub Salangi the deputy interior minister. Six people were also injured. The incident began when four teenagers entered the Serena Hotel in central Kabul on Thursday and started shooting randomly, police said. Afghan security forces killed the four gunmen, who police said were all under 18 and were "government opponents." Police said they believe the gunmen entered the hotel by smuggling small pistols in their shoes, then hid in the bathroom for several hours before launching their attack. The hotel also was the site of a shooting, in January 2008, that killed seven people. The Taliban claimed responsibility for that attack. This is latest attack to claim the lives of foreigners in the Afghan capital. Earlier this month, gunmen shot and killed a Swedish journalist in broad daylight. In January, a bomb and gun attack by the Taliban on a restaurant in Kabul killed 21 people, most of them foreigners. Earlier, in eastern Afghanistan, Taliban militants stormed a police station in Jalalabad, and a deadly gunbattle ensued, the country's Interior Ministry said. At least 11 people were killed and 22 were injured at the station, and at least six attackers were killed, according to a doctor at the hospital. This came as the militant group threatened to carry out attacks before next month's presidential election. Afghan Taliban spokesman Zabiullah Mujahid confirmed the action to CNN. He said fighters will "continue to attack the pro-U.S. Afghan establishment." Canada pulls out of Kabul as NATO winds down Afghan operations . Suicide blast rips through bazaar in northern Afghanistan . Journalists Zahir Shah Sherazi in Peshawar, Pakistan, and Qadir Sediqui in Kabul contributed to this report.

A:
NEW: Foreigners also died in attacks earlier this month and in January .
The nine dead are civlians -- a mix of Afghans and foreigners .
Four gunmen shot dead by security forces in Kabul hotel attack .
Gunmen were all under 18 and considered "government opponents"
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