Sources: CBS , 
quote: So the Arab-Israeli war, where Iran and 3 other countries attacked Israel in 1948...What about Israel being attacked in 1973 on a Jewish holiday?
quote: The British Mandate over Palestine was due to expire on 15 May, but Jewish leadership led by Ben-Gurion declared independence on 14 May (because 15 May was a Shabbat). The State of Israel declared itself as an independent nation, and was quickly recognized by the United States, Iran, the Soviet Union, and many other countries.
quote: The Egyptian Navy managed to enforce a blockade at Bab-el-Mandeb. Eighteen million tons of oil had been transported yearly from Iran to Israel through the straits of Bab-el-Mandeb.
quote: According to Admiral Ze'ev Almog, the Israeli Navy escorted tankers from the Gulf to Eilat throughout the war, and Israeli tankers sailing from Iran were directed to bypass the Red Sea.