This satellite image provided by Maxar Technologies shows a fire at an oil tank farm in Ashkelon, Israel, on Wednesday, May 12, 2021. Israel on Thursday, May 13, 2021, said it was massing troops along the Gaza frontier and calling up 9,000 reservists ahead of a possible ground invasion of the Hamas-ruled territory, as the two bitter enemies plunged closer to all-out war. Egyptian mediators rushed to Israel for cease-fire efforts but showed no signs of progress. (Satellite image ©2021 Maxar Technologies via AP)