Several former Central and East European leaders have published an open letter to President Obama, urging him to reaffirm that the United States remains fully engaged in Europe in the face of what they term "a resurgent Russia". The signatories who include Lech Walesa, and Aleksander Kwasniewski of Poland, and the former Czech leader Vaclav Havel say many nations were deeply disturbed to see NATO stand by as Russia violated the territorial integrity of Georgia last year.
一些前美国中央与东欧领导人写了封公开信给President Obama,催促他重申美国"应该"积极的参与欧洲对应俄罗斯的强势问题.这里的 remains 用一般现在时态合适吗?