A special prosecution team investigating former President Yoon Suk Yeol’s short-lived imposition of martial law late last year sought a 10-year prison sentence on Friday, accusing him of obstructing the execution of an arrest warrant and abusing his authority while in office. The sentencing request, made during closing arguments at the Seoul Central District Court, comes after a year of political turmoil triggered by Yoon’s ill-fated declaration of martial law last winter. It is the first of seven criminal cases involving the former president to reach the sentencing phase. The order — which deployed armed paratroopers to the National Assembly and stunned the international community — was short-lived, but it sparked a constitutional crisis that effectively paralyzed his administration and accelerated legal scrutiny by a special prosecutor that is now reaching its first critical juncture in court. Prosecutors are seeking five years in prison for the obstruction of official duties, three years for abuse of power, and two years for falsifying official documents and exercising them u