Ukrainian forces have responded to Russian efforts to expel them from one part of Russian territory by launching a large number of attacks on another border area, using drones, artillery and troops.

Both Kyiv and Moscow last week agreed to freeze attacks in the Black Sea and on energy infrastructure. ABC News’ Marcus Moore reports.

Vladimir Putin has escalated military operations this March, even as ceasefire negotiations have shown some progress. While Ukraine and Russia have only agreed to a 30-day ceasefire on each other's energy infrastructure,