Russia is playing risky games with its exploding drones, attacking Ukrainian ports only a couple hundred meters from NATO territory

• Russian forces have been routinely attacking Ukraine's southern cities and ports in recent weeks.
• Some drone strikes have targeted areas along the Danube River, which borders NATO member Romania. 
• Western intelligence says Russia has "evolved its risk appetite for conducting strikes near" NATO.

Russian forces have been increasingly carrying out explosive drones attacks on Ukrainian ports, even in areas near Ukraine's borders with NATO territory, and Western intelligence suggests the series of calculated moves show Moscow's "appetite" for risk has changed.