BANGKOK—A court in military-ruled Burma (also known as Myanmar) on Friday sentenced U.S. journalist Danny Fenster to 11 years in prison with hard labor, the maximum penalty under three charges, despite calls by the United States and rights groups for his release. It was the harshest punishment yet among the seven journalists known to have been convicted since the military ousted the elected government of Nobel laureate Aung San Suu Kyi in February. Fenster, the managing editor of the online magazine Frontier Myanmar, still faces additional terrorism and treason charges under which he could receive up to life in prison. The court found him guilty on Friday of spreading false or inflammatory information, contacting illegal organizations, and violating visa regulations, lawyer Than Zaw Aung said. Fenster wept after hearing the sentence and has not yet decided whether to appeal, the lawyer said. The harsh penalty is the ruling military’s latest …