The phrase "assembled to stop" is correct and usable in written English.
It can be used in contexts where a group or collection of items or people has been brought together for the purpose of halting or preventing something.
Example: "The emergency team was assembled to stop the spread of the wildfire before it reached the nearby town."
Alternatives: "gathered to prevent" or "mobilized to halt".
A hastily assembled "State Conference to Stop Integration" produced a message to President Eisenhower that Collins himself drafted, emphasizing that the State of Florida was committed to the "tradition and customs of segregation, which are as rooted in this state as in any other Southern state," even as it warned that Florida was "experiencing a serious deterioration of racial relations".
The shrinkage of American dominance was not what the league hoped for when a United States team of players who were driven by patriotism -- and not stopped by security fears -- assembled to join the N.B.A.'s 2004 Image Reparation Summer Tour.
Small groups of Australians managed to push through to The Cup where they were stopped by Ottoman troops who were hastily assembled to defend their regimental headquarters.
Rather, a small network or consortium should be assembled to produce each reference material to ensure continuity should a business fail or stop production.
German SS troops seized Vevi on 11 April, but were stopped at the Klidi Pass just south of town, where a mixed Empire-Greek formation known as Mackay Force was assembled to, as Wilson put it, "...stop a blitzkrieg down the Florina valley".
pJET1.2-STOP-dsRed, pJET1.2-HA-left, pJET1.2-HA-right, and an appropriate pBS-backbone were assembled to the pBS-donor vector by Golden Gate cloning.
They want Mr. Bush to stop assembling his administration.
Pitney Bowes has no plans to stop assembling postage meters in Connecticut, some of which are giant machines that can also stuff letters into envelopes at a rate of six per second for customers like Aetna, which makes massive health benefit mailings.
It was a salvo in a struggle between a man who had amassed vast bureaucratic powers and remade New York with expressways, parks and housing towers, and the woman who assembled neighbours and public opinion to stop him when he set his sights on the evisceration of a swath of lower Manhattan.
