What is the best way to present Islam in one minute to a Christian and a non-believer?

Calling people to Islam is of great importance, for the Prophet, peace and blessings be upon him, said: "For Allah to guide a single man through you is better for you than red camels." Calling Christians to Islam rests on two pillars:

1. Clarifying the truth of Islam: That it is the religion of all messengers and confirms what came before it, and that Jesus, peace be upon him, foretold Muhammad, peace and blessings be upon him, and that their disbelief in Muhammad, peace and blessings be upon him, is disbelief in what Jesus brought. It is necessary to explain how Islam conforms to human nature and reason, the proofs of the Prophet's truthfulness, peace and blessings be upon him (such as the Qur'an and its scientific inimitability), and the virtues of Islamic Sharia. 2. Exposing their falsehood and the distortion of their beliefs: And revealing the weaknesses in Christian dogma.

Debating disbelievers requires arming oneself with knowledge to avoid harm.