India and Pakistan are facing a new conflict. A look at their relationship

India struck multiple sites inside Pakistani controlled territory, as Pakistan says it downed several Indian military planes, the latest salvo in a conflict that is not new.

India struck multiple sites inside Pakistani controlled territory early Wednesday, two weeks after a deadly attack on tourists in the disputed Kashmir plunged relations between the neighbours to new lows.

India accused Pakistan of backing the massacre, in which 26 men, mostly Indian Hindus, were killed, a charge Pakistan denies.

Soldiers on each side have exchanged fire along their de facto border since the killings, with each blaming the other for shooting first. Both countries expelled diplomats and citizens, ordered the border shut and closed their airspace for each other.

Here’s a look at multiple conflicts between the two countries since their bloody partition in 1947:

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1947 — Months after British India is partitioned into a predominantly Hindu India and a Muslim-majority Pakistan, the two young nations fight their first war over control of Muslim-majority Kashmir, then a kingdom ruled by a Hindu monarch. The war killed thousands before ending in 1948.

1949 — A U.N.-brokered ceasefire line leaves Kashmir divided between India and Pakistan, with the promise of a U.N.-sponsored vote that would enable the region’s people to decide whether to be part Pakistan or India. That vote has never been held.

1965 — The rivals fight their second war over Kashmir. Thousands are killed in inconclusive fighting before a ceasefire is brokered by the Soviet Union and the United States. Negotiations in Tashkent run until January 1966, ending in both sides giving back territories they seized during the war and withdrawing their armies.