Russia has deployed S-400s in Syria, according to official Russian news media, and US officials have been discussing the interest other nations, particularly North Atlantic Treaty Organisation ally Turkey, have expressed in buying the system.
The Chinese media is also reporting that the USA has ordered the state-run news agency Xinhua and the English language state broadcaster, China Global Television Network, to register themselves as foreign agents under the Foreign Agents Registration Act.
The Trump administration imposed sanctions on the Chinese military on Thursday for buying fighter jets and missile systems from Russian Federation, in breach of a sweeping USA sanctions law punishing Moscow for meddling in the 2016 United States election.
Vice Foreign Minister Zheng Zeguang summoned Ambassador Terry Branstad and "lodged solemn representations over U.S. sanctions against (the) Chinese military", the People's Daily said in a brief report online.
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Washington says China's purchase of the weapons from Rosoboronexport, Russia's main arms exporter, violated a 2017 law meant to punish the government of Russian President Vladimir Putin for interfering in US elections and other activities.
"It would be good for them to remember there is such a concept as global stability which they are thoughtlessly undermining by whipping up tensions in Russian-American ties", said deputy foreign minister Sergei Ryabkov, adding, "Playing with fire is silly, it can become dangerous.we recommend that Washington's operators.at least superficially acquaint themselves with our history".
Huang Xueping, deputy head of the CMC's office for worldwide military cooperation, summoned the acting defense attache at the U.S. Embassy Saturday evening, according to a CMC press release. "[The Chinese military leadership] has already made a representation and expressed protest to the USA side", the ministry said in a statement.
On Thursday, the US State Department imposed sanctions against Beijing's defense procurement agency, the Equipment Development Department (EED), for its "significant transactions" with Russian arms exporter Rosoboronexport. "We strongly urge the USA side to correct its mistake immediately and withdraw the so-called sanctions", he said.
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The sanctions were enacted "to further impose costs on the Russian government in response to its malign activities", it said. The "hostile" move will only further harm US-Russian relations, which Peskov characterized as already in a "sorry state".
"Both sides have had contact and communication on this issue", ministry spokesman Geng Shuang replied at a daily news briefing, when asked about the report.
US Administration officials said they hoped the action against EDD would send a message to other countries considering buying the S-400.
This comes amid rising tensions between the USA and China over the escalating trade war. In return, China has retaliated against US exports.
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