President Hage Geingob has called on the Namibian Defence Force (NDF) to maintain absolute combat and readiness at all times in order to defend the sovereignty of the country. Dr Geingob who is also the Commander in Chief of the NDF made these remarks at the end of a month-long NDF's joint field training exercise dubbed Khan Strike-Two at Uulunga wa-Kolondo in the Oshana Region.