Yes, Israel fought a major war with Syria in 1973, but since then, the line of demarcation had been peaceful.
Ironically, it was John McCain who took on this demarcation in America's racial history most overtly.
“I think this could really be an important point of demarcation for Jewish public opinion of the president,” Tisch says.
c.1752, from Spanish linea de demarcacion or Portuguese linha de demarcaçao, name of the line laid down by Pope Alexander VI, May 4, 1493, dividing the New World between Spain and Portugal on a line 100 leagues west of the Cape Verde Islands. Applied from 1801 to other lines dividing regions. From Spanish de- (see de-) + marcar "to mark the boundaries of," from a Germanic source (see mark (n.1)).