Border closure task force counts gains in security economy sectors

Here's a possible completion of the sentence:

"The Border Closure Task Force has counted significant gains in the security and economy sectors since its establishment, with a notable decrease in illegal crossings and a boost in local businesses and employment opportunities."

Here's a breakdown of the sentence:

Overall, the sentence suggests that the Border Closure Task Force has been successful in achieving its goals and has had a positive impact on the security and economy of the region.