Venezuelan President Nicolás Maduro has received little support from long-time allies Russia and China as President Trump ramps up military pressure against Caracas. Beijing and Moscow, Maduro’s two most powerful allies, have previously provided Venezuela with military equipment, financial aid, and army training in the face of American aggression — but both nations have strayed from their usual tactics as they face their own military and economic woes. While Russia previously deployed two nuclear-capable bombers to Venezuela as a united show of force against the US in 2018, Moscow’s generosity has apparently dried up as it approaches its fourth year...