Before the early 1990s, Moscow hadn't provided major arms to Beijing since an ideological split in 1956, which led to a brief border clash in 1969.
But the North may yet respond to sanctions by provoking a conventional forces border clash with South Korea, either on land or sea, as it has done before.
But on Wednesday, both the BSF and the BDR troops started digging in and calling in reinforcement - bringing back memories of a fierce border clash between the two sides two years ago.
KABUL Thousands of marchers shouted "Death to Pakistan" and burned Pakistani flags in the Afghan capital Friday, a day after the worst border clash in more than a decade left one person dead and five injured.
But, ahead of Saturday's crunch clash at border rivals Shrewsbury Town, he is yet to find a way to reverse the club's dismal streak of results.
Though El Salvador and Honduras went to the International Court of Justice to settle their land border, all three countries still clash over fishing rights in the Gulf of Fonseca.
The border police officer killed in the previous clash has been hailed as a martyr amid rising nationalist fervour on social media sites in Afghanistan, our correspondent reports.
Before this war, Hizbullah was in control of Israel's border with Lebanon, and could provoke a clash at any time.
Guatemala only grudgingly agreed to recognise Belize in 1991, and patrols still clash on a disputed stretch of their border.
At least 25 Pakistani troops died during a prolonged clash after hundreds of militants crossed the Afghan border on Tuesday, officials say.
The clash happened on 17 January in the Afar region near the border with Eritrea.
Efforts to carve out that link may have sparked another incident in February that brought Lebanese Sunnis into a direct clash with the Lebanese army near the country's eastern border with Syria.
WSJ: As Syrian Crisis Intensifies, Fight Bleeds Into Lebanon
Frustrations over the situation in Gaza erupted in a clash between Palestinian demonstrators and Egyptian security forces at the Gaza-Egypt border.
Both sides blamed the other for provoking the clash, which appeared to begin after Afghan forces seized control of a Pakistan border post.
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