BRUSSELS: NATO is strengthening its military footprint along its eastern border immediately in response to Russia’s aggression in Ukraine, the alliance’s chief said Wednesday.Secretary General Anders Fogh Rasmussen said NATO’s air policing aircraft will fly more sorties over the Baltic region and allied ships will deploy to the Baltic Sea, the eastern Mediterranean and elsewhere if needed.“We will have more planes in the air, mores ships on the water and more readiness on the land,” Fogh Rasmussen told reporters in Brussels, declining to give exact troop figures.Moscow must make clear “it doesn’t support the violent actions of well-armed militias or pro-Russian separatists” in eastern Ukraine, he added.NATO’s eastern members — including Lithuania, Estonia, Latvia and Poland — have been wary following Russia’s annexation of Ukraine’s Crimean Peninsula, demanding a more robust military det...