70.514.626= (ANSWER)

Write out the number in Spanish.

if the periods are to stand for commas then it is:

setenta millon quinientos catorce mil y seis cientos veintiseis

Explanation:

Hi there, so what i know is:

as détente broke down, progress on nuclear arms control stalled completely. As their relationship continued to erode, it became clear that both the U.S. and the Soviet Union had overestimated the extent to which détente would contribute to an agreeable and peaceful end of the Cold War.

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                                     - Haley <3