1973 [ January ] [ February ] [ March ] [ April ] [ May ] [ June ] [ July ] [ August ] [ September ] [ October ] [ November ] [ December ] The following pages contain high resolution photos that can be downloaded for printing.   January 1 January 1973 NATO Satellite Communications System (SATCOM) becomes operational. May 11 May 1973 Inauguration of the Standing Naval Force Channel (STANAVFORCHAN) October 30 October 1973 Talks on Mutual and Balanced Force Reductions (MBFR) begin in Vienna