<P> Vatican II made a deep impact on Catholic missions around the world . The Church's relations to non-Christian religions like Judaism and Islam were revisited . </P> <P> A steep decline in the number of people entering the priesthood and religious life in the West has made the Church look towards laity more and more . Communities like Opus Dei arose to meet this need . </P> <P> Inculturation increasingly became a key topic of missiological reflection for Catholics . Inculturation is understood as the meeting of the Christian message with a community in their cultural context . </P> <P> Liberation Theology and liturgical reform have also been important in forming and influencing the mission of the Catholic Church in the 20th and 21st Centuries . </P>

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