After Russian bases deep inside Russian territory were rocked by explosions, a top US official stressed that the US is not pushing Ukraine to strike targets beyond its borders.We've been very clear that these are defensive supplies," State Department spokesperson Ned Price said during a Tuesday briefing.The other explosion that day took place at the Dyagilevo air base, just southeast of Moscow.Britain's defense ministry said during a Tuesday's intelligence update that although the causes of the explosions has "not been confirmed," if Russia determines that the incidents were an intentional act, "it will probably consider them as some of the most strategically significant failures of force protection since its invasion of Ukraine."Throughout the course of the devastating war in Ukraine, Western countries and NATO allies have avoided sending Ukraine long-range weapons capable of striking within Russia, and they have often urged Kyiv to avoid doing so."