He was arrested in 1971 and severely tortured then deported to what was then called Ovamboland, due to involvement in SWAPO Youth League political activities.
On about 4 August 1971, Kalomoh joined thousands of students throughout the Northern region in a demonstration at the Ondangwa Native Commission offices welcoming the judgment of the International Court of Justice (ICJ) at The Hague, declaring South African occupation of Namibia illegal and ordering it to withdraw its administration from the territory.
From 1972 to 1973, Kalomoh worked as a teller for the Bantu Investment Cooperation Bank (BBK) at Oshakati, and branch manager at Onesi, Ohangwena and Ondangwa, respectively.
[1] His participation with thousands of SWAPO members at a demonstration in August 1973, led by John Ya Otto in solidarity with SWAPO leaders who were being detained for allegedly having violated the emergency proclamation R17 (which prohibited the holding of public meetings or a gathering of more than five people) led to his detention at Ondangwa overcrowded police cells for 4 months.
While in detention, Kalomoh was allowed to pursue his studies for Form III through correspondence with a South African distant education school and wrote examinations at Ongwediva in November 1973.
Kalomoh was appointed by Anglican Bishop Richard Wood as secretary and treasurer for St Mary's Hospital, Odibo in January 1974 until August 1974, when the hospital was closed down by the South West Africa White Administration, after some teaching and nursing staff and students at Odibo left for Zambia to join the liberation movement.
In his capacity of under-secretary for political and economic affairs Kalomoh accompanied prime minister Hage Geingob to the United Nations to attend the special session of the UN General Assembly for Namibia's admission to the world body in April 1990.
The talks culminated in the signing of the Lusaka Protocol of August 1999 which ushered in the peace process in DRC and the deployment of the UN peace-keeping force in 2000.
His last mediation mission was to Somalia to help the Federal Transition Government reconcile with moderate elements of the Union of Islamic Courts.