Division of Cyprus (1974)
A coup backed by Greece's military junta overthrew President Makarios. Turkey sent troops in two waves, and the ceasefire line that stopped the fighting became the buffer zone separating a Turkish Cypriot north from a Greek Cypriot south.
Roughly a third of the island came under Turkish military control, and Greek Cypriots in the north were displaced southward.
The buffer zone became a permanent UN-patrolled frontier, and the north declared independence in 1983 in a state recognized only by Turkey.
Every crossing point in this story is a gap in that 1974 line. Opening one is a small, physical revision of the partition.
