VANESSA GERA and MONIKA SCISLOWSKA | August 14, 2008 07:30 PM EST |

WARSAW, Poland — Poland and the United States struck a deal Thursday that will strengthen military ties and put an American missile interceptor base in Poland, a plan that has infuriated Moscow and sparked fears in Europe of a new arms race.
"We have crossed the Rubicon," Polish Prime Minister Donald Tusk said, referring to U.S. consent to Poland's demands after more than 18 months of negotiations.