WASHINGTON — The Pentagon is tapping into a vast but little-known stockpile of American ammunition in Israel to help meet Ukraine’s dire need for artillery shells in the war with Russia, American and Israeli officials say.With stockpiles in the United States strained and American arms makers not yet able to keep up with the pace of Ukraine’s battlefield operations, the Pentagon has turned to two alternative supplies of shells to bridge the gap: one in South Korea and the one in Israel, whose use in the Ukraine war has not been previously reported.Another analysis published last month by the Foreign Policy Research Institute said that if Ukraine continued to receive a steady supply of ammunition, particularly for artillery, as well as spare parts, it would stand a good chance of wresting back more territory that Russia had seized.“The question is whether these advantages will prove sufficient for Ukrainian forces to retake territory from entrenched Russian troops,” wrote Rob Lee and Michael Kofman, leading military analysts.The State of the War - Dnipro: A Russian strike on an apartment complex in the central Ukrainian city was one of the deadliest for civilians away from the front line since the war began."