Hamas remains a formidable fighting force in the Gaza Strip, the US has said, despite months of indiscriminate Israeli attacks that have wrought devastation on the enclave’s civilian population. The US has estimates for the number of members of the Palestinian group remaining, but National Security Council spokesperson John Kirby said he was “loath” to reveal this rough figure. “But Hamas still has a significant force posture inside Gaza,” he said at the press briefing at the White House on Wednesday. However, Kirby said Israel has “without question” had an “effect on Hamas’s ability to comman…