The Pentagon has given a tacit endorsement of Ukraine’s long-range attacks on targets inside Russia after President Putin’s multiple missile strikes against Kyiv’s critical infrastructure. Since daily assaults on civilians began in October, the Pentagon has revised its threat assessment of the war in Ukraine. Crucially, this includes new judgments about whether arms shipments to Kyiv might lead to a military confrontation between Russia and Nato. This represents a significant development in the nine-month war between Ukraine and Russia, with Washington now likelier to supply Kyiv with longer-range weapons. “We’re still using the same escalatory calculations but the fear of...