benghazi libya libyan force fight benghazi lose four men see 10 wound far december five months declare victory campaign control eastern city medical source say monday three dead libyan national army lna kill snipers one landmine face resistance group fighters benghazi district khreibish daily clash area occasional air strike lna commander khalifa haftar declare victory three-year military campaign array islamist militants fighters benghazi early july fight part broad conflict develop follow 2011 fall strongman muammar gaddafi haftar oppose u.n.-backed government base capital tripoli gradually strengthen position grind libyan force suffer casualties fight drag benghazi