To combat Russia's larger military, Ukraine has turned to creative tactics, from low-tech to high-tech. You could call them "war hacks." And many seem to be working.
President Volodymyr Zelenskyy and other Ukrainian leaders took to social media to stand in sympathy and solidarity with a tragedy unfolding across the world.
When Ukraine was invaded, many expected a quick Russian victory. The war is 3 months old, with both sides digging in for a battle that could potentially be a long, drawn-out stalemate.
Many slipped across the border as the war began, but lack passports or other official forms of ID. They struggle to prove their eligibility for humanitarian aid — and to cross into other countries.