During Israel's existential crisis of 1967, American Jews widely believed they stood alone, perceiving silence and abandonment from their Christian neighbors. Yet comprehensive analysis reveals this perception sharply contradicted reality - 82-88% of Americans actively supported key Israeli positions, with prominent Christian leaders across denominations publicly defending Israel's right to exist and protect itself. Through examination of public opinion polls, religious leadership statements, and institutional positions during the ten-week crisis period, this research challenges the prevailing narrative of Christian indifference. While major Christian institutions like the National Council of Churches and National Conference of Catholic Bishops did respond inadequately to threats of Jewish annihilation, individual Protestant theologians, Catholic Cardinals, and Orthodox clergy provided substantial moral support. Analysis of Harris and Gallup polling data, along with documentation of Christian declarations, demonstrates that Jewish-Christian dialogue had successfully fostered theological shifts, including Christian recognition of Judaism's permanent validity and connection to Israel. These findings suggest that abandoning interfaith dialogue would be strategically dangerous for Jewish security, particularly as diaspora Jewish communities primarily exist within Christian-majority societies whose support remains crucial for Israel's international standing.