You talk about isreal and iran war? Here You have to Remeber something
After Pakistan gained its independence in August 1947, Iran was the first country to recognize its sovereign status.Tehran was once a significant capital that ensured Pakistans security. Generals like Ayub Khan, Yahya Khan, Nur Khan and others appreciated Irans worth for Pakistan. There is enough evidence that speaks volumes about Irans centrality for Pakistans security, especially up until the late 1970s. The Shah of Iran had provided material help to Pakistan during the latters 1965 war with India and was looked upon to admonish New Delhi for any adventurism. In 1969, Pakistan celebrated the Iranian monarchy and Iran celebrated Pakistan Day. The then governor of Sindh, Vice Admiral, SM Ahsan, stated: Pakistan and Iran are twin brothers..
I am 100% Sure Pakistan must Support Iran If war happend also Israel is enmy of Pakistan.