According to Egypt Defense Portal, the vehicles, which include YPR-765 armored infantry fighting vehicles and M60 main battle tanks, were stationed near Gaza in preparation for an expanded military campaign in the framework of Comprehensive Operation Sinai 2018, which began last February.
Egypt Moves Armored Vehicles to the Gaza Border
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U.S. Air Force photo by Master Sgt. Donald R. Allen - http://www.dvidshub.net/image/935698/aerial-refueling-f-35-lightning-ii-..., Public Domain, https://commons.wikimedia.org/w/index.php?curid=49689165