I can take a first stab at it, Mr. Chair, and then turn to the vice-admiral.
In response to the illegal annexation of Crimea in 2014, we began to reinforce the eastern flank. The enhanced forward presence battle groups in the Baltic countries and Poland, one of which we lead, are part of that response, but there are many other elements, including air policing, that we participate in as well.
What we have begun to do in response to this new, more severe violation of Ukrainian sovereignty and territorial integrity is to shore up those eastern flank defences, and that will continue for as long as required, Mr. Chair. SACEUR has done an outstanding job of leading the alliance in reinforcing that flank.
We're doing this in part through setting up new eFP-like battle groups, but also through the movement of troops and a whole range of other measures. So if there is a longer-term risk to NATO's eastern flank, there will be a much longer term NATO reinforcement of that flank.