WASHINGTON, April 29 -- U.S. President Donald Trump spoke over phone with his Turkish counterpart Recep Tayyip Erdogan on Monday over the issue of Ankara's purchase of S-400 missile defense system, said the White House.
Trump and Erdogan discussed trade, security concerns in northern Syria, and Turkey's planned purchase of the Russian made S-400 system, according to a White House statement.
Turkish Presidency said in a statement the same day that Erdogan had brought forward the proposal to form a working group concerning the procurement of the S-400 systems from Russia during his phone conversation with Trump.
The White House statement, however, made no mention of the Erdogan's working group proposal.
The United States has been in a feud with Turkey over the latter's purchase of Russian S-400 air defense system.
The United States argued that Russian missiles on Turkish territory could gain valuable intelligence on the technical systems of the U.S.-made stealth F-35 jets expected to be delivered to Ankara in November.
During a congressional hearing in March, General Curtis Scaparrotti, head of U.S. European Command, suggested that the United States should cut the sale of F-35 fighters to Turkey if Ankara adopts S-400 system.
On April 3, U.S. Vice President Mike Pence warned Turkey against purchasing the S-400 system from Russia, despite Ankara's firm stance on the deal.
Pentagon announced early this month that it halted "deliveries and activities" related to Turkey's procurement of the F-35 fighter jets program if Ankara insisted on the S-400 deal.
Washington also reportedly threatened to reject sales of Patriot missiles to Turkey in case of the latter's purchase of Russian systems.
国际英语资讯:Illegal immigration, terrorism, economy on agenda of Merkels Algeria visit
国际英语资讯:G7 ministers gather in Canada for climate talks
国内英语资讯:Chinese president pledges support for Samoas economic development
国内英语资讯:Central officials arrive in Ningxia for 60th anniversary celebrations
国际英语资讯:Massive protests held in Japan marking 3rd anniversary of controversial security laws
国内英语资讯:China, Singapore to promote bilateral cooperation, safeguard multilateral trading system
国内英语资讯:New measures to be taken for steady growth of foreign trade: Chinas cabinet
国内英语资讯:Chinese big data firms vow to better protect user information
体坛英语资讯：Former Brazil striker Ronaldo confirms purchase of Real Valladolid
国际英语资讯:Trump says U.S. considering permanent military base in Poland
伦敦市长把川普送上天，这下轮到他自己了！
国内英语资讯:Senior Chinese legislator visits Romania to enhance ties
体坛英语资讯：Italy beat China in straight sets at Montreux Volley Masters
国内英语资讯:Xi meets Pakistani army chief
What I Have Learned 我学到了什么
娱乐英语资讯:Chinese, U.S. musicians gather in Indiana for music exchanges
体坛英语资讯：Uganda names final squad for 2019 AFCON qualifier against Tanzania
中国报复美国加征2000亿商品关税
国际英语资讯:Spotlight: S. Koreas Moon in Pyongyang for much-anticipated summit with Kim
国内英语资讯:China Focus: WEF founder optimistic about Chinas growth
国内英语资讯:China launches twin BeiDou-3 satellites
国际英语资讯:Putin, Merkel discuss peace deal on Syrias Idlib
国际英语资讯:Pompeo says ready to transform U.S.-DPRK ties immediately
国内英语资讯:Macaos preparation for Typhoon Mangkhut proves effective: chief executive
韩朝两国领导人为第三次峰会作准备
国内英语资讯:China-made large amphibious aircraft to enter high-speed test on water
国内英语资讯:China urges non-regional countries not damage peace, stability of South China Sea
国际英语资讯:China, EU should enhance mutual trust, jointly safeguard global multilateral trade system: s
体坛英语资讯：Japanese Osaka storms into U.S. Open womens singles quarters
国内英语资讯:Chinese president, wife visit Cambodian King, Queen Mother