The phrase "advance element" is correct and usable in written English.
It can be used in contexts related to planning, military operations, or project management, where it refers to a preliminary or leading component that is deployed ahead of others.
Example: "The advance element of the team was sent to secure the area before the main group arrived."
Alternatives: "preliminary component" or "leading unit".
The police car, the authorities said, was part of an "advance element" of the motorcade made up of three marked police cars that traveled about three minutes ahead of Mr. Biden's vehicle to help clear the way and make sure there were no "breakdown issues" along the way.
Task Force Smith, an advance element of the 24th Infantry Division was badly defeated in the Battle of Osan on 5 July, during the first encounter between American and North Korean forces.
At 11 30 a.m. on July 9, the 3rd Regiment Kentucky Cavalry, the advance element of the Confederate forces under the command of Col. "Stovepipe" Johnson, was sighted moving north along the Mauckport Road towards Corydon.
Silas accompanied the younger Chandler and the rest of the Ninth as they skirmished with advance elements of Maj.
His advance elements moved down the Shenandoah Valley toward Harpers Ferry, brushing aside small Federal forces near Winchester.
The result was a series of mostly small-scale skirmishes in the vicinity of the Rappahannock, as advance elements of the two weakened armies clashed.
Kurdish officials, speaking on condition that they not be identified, said the newly arrived troops were advance elements of a force that would soon open a northern front against Iraqi forces.
A8 Advance elements of the Badr Brigade, an Iranian-backed militia that includes many deserters from Iraq's army, are building a new military encampment in northern Iraq, and preparing to move several thousand fighters into the area, according to officials and a visit to the camp.
Advance elements of the Badr Brigade, an Iranian-backed militia that includes many deserters from Iraq's army, are building a new military encampment in northern Iraq, and preparing to move several thousand fighters into the area, according to local Kurdish officials familiar with the deployment and a visit to the camp.
Congress can advance elements of the budget without endorsing the entire proposal.
Advance elements of the headquarters took their place in the Pusan perimeter on 27 August.
