After some initial resistance, Nasser ordered an evacuation of the Sinai Peninsula; by the fourth day of the conflict, Israel had occupied the entire Sinai Peninsula. Jordan, which had entered into a defense pact with Egypt a week before the war began, did not take on an all-out offensive role against Israel, but launched attacks against Israeli forces to slow their advance. On the fifth day, Syria joined the war by shelling Israeli positions in the north.

Egypt and Jordan