Moscow, August 17 (Xinhua) Russian Foreign Ministry spokesman Maria Zakharova commented on matters related to the US government’s signing of the “agreement on strengthening defense cooperation” with the Polish government and determining the increase of US troops in Poland, saying that it is dangerous for the United States to expand its military presence in Poland. Zakharova said that the U.S. troop increase in Poland will aggravate the tension in Russia’s western border area. This will not only not solve the security problem, but also make the unstable situation in the western border area of Russia more complex and increase the risk of accidents. Zakharova said that the NATO side stressed that the limited increase of US troops to Poland was only a normal rotation, which further showed that NATO ignored the facts. The increase of US troops to Poland is the result of NATO’s internal coordination, which reflects that in recent years, NATO has been implementing the policy of “containing Russia”, drawing up demarcation lines in Europe and intensifying the tension in Europe. According to the “enhanced defense cooperation agreement” signed by US Secretary of state pompeio during his visit to Poland on the 15th, the United States will send about 1000 more troops to Poland, that is, from 4500 to 5500, and deploy the front command post of the Fifth Army Command in Poland. NATO East Wing command center will also be located in Poland.