Christ's message was, simply, to accept him and be allowed into his Kingdom. For Jews, non-jews must must accept they are not Jewish and be spared 'God's' wrath -- see Book of Joshua, as you mentioned.
The old testament does a lot of insight into the warmonging that has gone on in recent and distant histories.
Also Islam, too, is founded on coercive obedience. Most religions have elements of this (except Christianity and Buddhism, which both respect life, and are expressedly non-violent), and most, too, are not all bad.
Christ's message was, simply, to accept him and be allowed into his Kingdom. For Jews, non-jews must must accept they are not Jewish and be spared 'God's' wrath -- see Book of Joshua, as you mentioned.
The old testament does a lot of insight into the warmonging that has gone on in recent and distant histories.
Also Islam, too, is founded on coercive obedience. Most religions have elements of this (except Christianity and Buddhism, which both respect life, and are expressedly non-violent), and most, too, are not all bad.