The phrase "attack was delayed" is correct and usable in written English.
It can be used in contexts discussing military operations, sports, or any situation where an action is postponed or hindered.
Example: "Due to unforeseen circumstances, the attack was delayed, allowing the enemy to regroup."
Alternatives: "assault was postponed" or "offensive was held back."
News of the attack was delayed until Friday because of previous destruction of cell phone towers in the area by the Islamic militants.
This was repulsed by the cavalrymen, with the help of artillery and mortar fire, but the American attack was delayed until late afternoon.
The 45th, 36th and 3rd Infantry Divisions were pulled from the line in Italy to conduct Operation Anvil, but the attack was delayed until August because of a shortage of landing craft.
This attack was delayed for several hours; when it finally started late in the morning of 13 May, it ran right into a comparable advance by two battalions of Der Fuehrer.
The military tribunal case against Khalid Shaikh Mohammed and four others who are accused of being accomplices in the Sept. 11 terrorist attacks was delayed on Monday as defense lawyers pressed forward with concerns that their confidential communications with their clients and other counsel might be subject to eavesdropping by the government.
Other al Qaeda detainees also confirm that the 9/11 attacks were delayed during the summer of 2001, despite Bin Ladin's wishes.
Remember that your attacks are delayed by about a half second at most.
The column that was to attack Mount Independence was delayed, and its numerous defenders were alerted to the action at the fort below before the attack on their position began.
The Sept. 11 commission's recommendations come 34 months after the attack; its inquiry was delayed by months because of opposition from the White House.
The film "Collateral Damage," in which Arnold Schwarzenegger seeks justice for a terrorist attack on Los Angeles, was delayed in September among much speculation that it could never be released; it opens on Friday.
UN inspectors have visited the site of the suspected attack, although their trip was delayed after their convoy was shot at by snipers.
