by Sylvie Lanteaume and Francesco Fontemaggi The United States believes Russia is digging in for a protracted war, and Washington wants to help Kyiv resist, but an overarching goal remains — limiting the conflict to Ukraine to avoid spillover that could provoke “World War III.” The US military establishment is walking a tightrope as it seeks to balance such demands and avoid nuclear escalation, according to public statements by American leaders and AFP interviews with […]