Southeast of Artemivsk, there is Donbass-750 an important node in the power grid.

Global city - city that is deemed to be an important node in the global economic system.

Buenos Aires is an important node in the global economic system.

Bletchley railway station was for many years an important node on the railway.

Budapest, the capital of the state, serves as an important node in the public transport network.

Derby's central location and former importance as a 'railway town' have made it an important node of the rail network.

Knocking out the important nodes has serious cascading effects throughout the network.

Being an important node in the rural economy, the Padmashali community also naturally felt the impact.

Chaumort was quietly establishing itself as an important node in a whole new market.

These types of threats are most easily countered by finding important nodes in the network, and removing them.