In 1991, at age 11, Robert Mukisa Kangave embraced the Lord Jesus and the call into ministry at 14. His unwavering passion for Jesus Christ propelled him to establish dynamic Christian fellowships with prayer altars, laying the groundwork for spiritual growth among his peers. In October 2005, during his third year at Makerere University Kampala, he launched the Christ Armor International Ministries (CAIM), an Apostolic ministry domiciled in Africa (Uganda).

In August 2009, Robert entered into a blessed marriage union with his wife Germinah Kangave an attorney-at-law, who quickly became an indispensable pillar of support in the ministry. Together, they are blessed with a remarkable family and children, namely: Rhesa, Reenah, Rafaelah, Ranai, and Royal.

After nine years of pastoring the first church plant under CAIM, Robert stepped into faith-driven obedience by resigning from his six-year position as a Fraud and Investigations Analyst with Barclays Bank (Uganda) in May 2014. He committed himself fully to executing the prophetic call as a voice to the nations; preparing and equipping an end-time army for Christ—which is also the CAIM vision mandate.

Empowered by the Holy Spirit and bolstered by the support of friends and partners, CAIM launched its inaugural series of Miracle Healing crusades across 27 regions of Uganda between 2015 and 2016. These events led to an undeniable outpouring of salvations, healings, miracles, and pastoral leadership seminars. In 2017, CAIM expanded its reach beyond Uganda to parts of Asia, Europe, and now the USA.

Under the auspices of the CRISTARM Mercy Foundation, a vital offshoot of CAIM, the ministry actively reaches out with the love of Christ to serve the homeless and needy, providing essential shelter, food, and clothing. Furthermore, through the Legal and Education arm of CHRISTARM, CAIM offers invaluable free legal counseling and educational services, solidifying its commitment to community empowerment and support.