Poland's foreign minister says that this year's NATO summit in Warsaw may approve a permanent presence of troops in Eastern Europe amid concerns for the region's security in the face of a resurgent Russia.

Poland's leaders say the July 8-9 summit will concentrate on security issues on NATO's eastern flank, which has no permanent or significant presence of allied troops.

Witold Waszczykowski said Monday that the summit should "open the process of building an allied presence in Central and Eastern Europe."

He said an increasing number of member states, which he did not name, are in favor of the idea.

Waszczykowski said on TVN24: "The term 'bases' is avoided as reminiscent of Cold War confrontation attitudes, but there are signs that indicate that such presence will be guaranteed."