In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Q: It is a moment etched into America’s collective memory – when Britain took a torch to the White House in 1814. 
  
 But according a private conversation which leaked to CNN, Donald Trump thinks another close ally was behind the famous blaze. 
  
 The US president reportedly blamed Canada for the fire in a testy phone call this week about his new tariffs with Justin Trudeau, the Canadian prime minister. 
  
 Mr Trudeau has opposed Mr Trump’s steel and aluminium sanctions and questioned America’s claim that they are needed in the interests of national security. 
  
 Rebuffing the criticism down the line, Mr Trump reportedly shot back: “Didn't you guys burn down the White House?" 
  
 The historical faux pas could be explained by the fact that the act was in retaliation to America’s attack on York, Ontario – a British colony that eventually became Canada. ||||| In a telephone call on May 25, Prime Minister Justin Trudeau asked U.S. President Donald Trump how he could possibly consider Canada a threat to America’s national security – the ostensible reason for looming tariffs on Canadian steel and aluminum. 
  
 “Didn’t you guys burn down the White House?” Mr. Trump replied, in reference to the capture of Washington during the War of 1812. 
  
 The President’s glib response, first reported by CNN and confirmed by The Globe and Mail, was emblematic of Mr. Trump’s new attitude toward his northern neighbour, whom he is treating as his No. 1 enemy amid an escalating trade war and growing rhetorical battle with Mr. Trudeau. 
  
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 Since hitting 30 countries with metals tariffs last week, Mr. Trump has bashed Canada far more than his usual adversaries in Mexico, China or the European Union. 
  
 Opinion: As trade war escalates, era of the Trump whisperer comes to an end 
  
 Trump’s tariffs: How Canada is retaliating and what it means for NAFTA 
  
 ‘Great challenges’: Trudeau, Macron present united front ahead of collision with Trump 
  
 When Mr. Trudeau announced retaliatory levies on a slew of U.S. goods – from orange juice to pickles – and accused the Trump administration of ignoring “logic and common sense” on trade, Mr. Trump called out the Prime Minister by name in a statement that threatened to tear up the North American free-trade agreement. In a tweet the next morning, he mused about shutting Canadian wood products out of America. 
  
 And after the Prime Minister took to U.S. television to describe Mr. Trump as “unpredictable” and his tariffs “insulting and unacceptable,” the President lashed out again online, tweeting that “Canada has all sorts of trade barriers on our Agricultural products. Not acceptable!” 
  
 Mr. Trump was notably more muted in his treatment of Mexico and the EU, even as they announced similar retaliations. 
  
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 Things stand to get worse: While Mr. Trudeau is hoping a meeting with Mr. Trump at the G7 summit in Quebec later this week will calm the waters, the President is mulling further tariffs, including a 25-per-cent levy on Canadian-made cars and trucks. 
  
 The fight has pushed relations between Canada and its closest commercial and diplomatic partner to their tensest time in recent memory, with $900-billion of annual trade in the balance. 
  
 At least part of Mr. Trump’s ire toward Canada appears to come from dashed expectations, observers said. For more than a year, Mr. Trudeau publicly avoided any public criticism of the President, making his tough tariff response a surprise. 
  
 “Trump thought Canada was going to be the easiest country to play, and he’s disappointed that didn’t happen,” said Dunniella Kaufman, a Canadian trade lawyer based in Washington. 
  
 Sources with knowledge of the Trump administration’s thinking say the President’s annoyance with Ottawa has actually been building for nearly a year: When the Trump administration started NAFTA renegotiations last summer, it expected Canada to gang up on Mexico and help force it to give up auto jobs that had been lured south. When Canada instead formed a common front with Mexico against Mr. Trump’s protectionist demands, the United States was upset, the sources said. 
  
 At a White House meeting in February, Mr. Trump complained that Canada was “very smooth” at taking the U.S.’s money in unfair trade deals. On other occasions, he has accused the country of being “very rough” as it has “taken advantage” of the United States and “outsmarted our politicians for many years.” 
  
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 Christopher Sands, director of the Center for Canadian Studies at Johns Hopkins University, said Mr. Trump was particularly rankled by Ottawa’s NAFTA outreach campaign, during which Canadian politicians and businesspeople fanned out across the country to encourage their American counterparts to lobby the White House to preserve NAFTA. 
  
 “I think it started bugging him,” he said. 
  
 Matthew Rooney, a former U.S. state department official in charge of the Canada file during the Obama administration, said there have been difficult times in the past. When then-prime minister Stephen Harper in 2011 said U.S. approval of the Keystone XL pipeline – which then-president Barack Obama was refusing to do – was a “no-brainer,” the White House considered the remark beyond the pale. 
  
 But tensions with the current President are on a different level. 
  
 “There have always been little tiffs that are part of doing business. But this is a little unusual and unusually personal,” he said. “If President Trump actually referenced the War of 1812, that is frankly absurd.” 
  
 The reference itself is not entirely historically accurate. While the war was largely fought over control of Canada, which was then a British colony, the August, 1814, attack on Washington itself was carried out by British regulars and marines rather than colonial militia. The raid, made in revenge for the American burning of York – present-day Toronto – the previous year, saw the British briefly capture and set fire to the U.S. capital. 
  
 Mr. Trump’s chief economic adviser, Larry Kudlow, played down the feud at a White House briefing Wednesday. 
  
 “The United States and Canada will remain firm friends and allies, whatever short-term disagreements may occur,” Mr. Kudlow said. “So I would say relations are very good.” 
  
 And Laura Dawson, director of the Canada Institute at the Wilson Center think tank in Washington, said that – despite the current drama – ties between the two countries on everything from commerce to the Stanley Cup final are strong enough to weather the storm. 
  
 “It’s important to differentiate between relations between leaders, and relations between communities, government organizations, businesses and citizens,” she wrote in an e-mail. “Six Canadians on the Caps roster and eight on Vegas. We’re still good.” ||||| Donald Trump and Justin Trudeau held a tense telephone call last month over the U.S. president's decision to slap Canada with steep tariffs on steel and aluminum. 
  
 Trump mentioned the burning of the White House during the War of 1812 during the confrontational May 25 call, which was first reported by CNN and confirmed by CBC News. 
  
 Trudeau reportedly asked Trump how tariffs could be imposed on Canada on "national security" grounds. Trump reportedly responded: "Didn't you guys burn down the White House?" 
  
 It's not clear if Trump was attempting to inject humour into a discussion on a topic that could have serious economic repercussions. 
  
 British troops burned down the White House in 1814 during the War of 1812, in retaliation for an American attack on York, Ont., a British colony at the time. 
  
 Former Prime Minister Paul Martin sits down with Power & Politics host Vassy Kapelos to discuss U.S. steel tariffs and how they will impact the G7 summit in Charlevoix, Quebec. 6:34 
  
 News of the call in late May emerged just days before the G7 summit that Canada is hosting in Charlevoix, Que., where the two leaders will meet face-to-face. 
  
 Ahead of that meeting, French President Emmanuel Macron will arrive in Ottawa to sit down with Prime Minister Justin Trudeau in Ottawa today. 
  
 The two leaders will discuss priority issues ahead of the G7 meeting, where talk of trade disputes will be on the table along with the summit's central theme of promoting global gender equality. 
  
 "Obviously a lot of opportunities to talk about a range of issues that Canada and France have in common, and quite frankly, also talk about this upcoming weekend's G7, where there will be some very direct conversations on issues where there's been disagreement. Tariffs obviously come to mind on that one," Trudeau said before a weekly meeting with his Liberal caucus. 
  
 The Ottawa meetings will give the leaders a chance to strategize on how to deal with the U.S.'s decision to end an exemption on steel and aluminum tariffs that initially had been granted to Canada, Mexico and the EU. 
  
 Canada countered by announcing it would slap an estimated $16.6 billion in duties on some steel and aluminum products and other goods from the U.S., including maple syrup, beer kegs, whisky and toilet paper. 
  
 The EU has also announced new duties in response. 
  
 ABC News reported that Treasury Secretary Steven Mnuchin urged Trump to exempt Canada from the tariffs, citing two senior administration officials and two sources close to the White House. Mnuchin met with Finance Minister Bill Morneau in Whistler, B.C. at a gathering of the G7 finance ministers. 
  
 Today, White House economic adviser Larry Kudlow denied that report during a press briefing. 
  
 After returning from the G7 finance ministers summit in Canada, Mnuchin reportedly made the case that the U.S. has a $2 billion steel surplus with Canada and a nearly $26 billion services surplus, and should consider making an exemption for its northern neighbour, according to the sources. 
  
 Trudeau wants trilateral NAFTA talks 
  
 Today, Trudeau also responded to Kudlow's suggestion yesterday that Canada hold one-on-one North American Free Trade Agreement (NAFTA) negotiations. 
  
 Kudlow said Trump is now "very seriously contemplating a shift in NAFTA negotiations." 
  
 "His preference now, and he asked me to convey this, is to actually negotiate with Mexico and Canada separately," he told Fox News Tuesday. 
  
 Trudeau said Canada intends to focus on trilateral talks with Mexico and the U.S. to achieve a "win-win-win" deal. 
  
 "Canada's position is and has always been that the trilateral approach is actually better for Canada, for Mexico, and for the United States," he said. "We think that demonstrating NAFTA as a solid community as we take on the world is very much in all three of our advantages and we're going to continue to negotiate that way." 
  
 Humanitarian agency CARE Canada issued a statement imploring the G7 leaders not to let trade disputes overshadow the focus on supports for women and girls. 
  
 Range of issues for G7 
  
 "Canada's G7 presidency has advanced an agenda that puts women and girls at the centre of efforts to tackle these challenges. With only days to go until the summit, G7 leaders must stick to their agenda and agree on co-ordinated and bold actions that can deliver real change for those most at risk," said Gillian Barth, president and CEO of CARE Canada. 
  
 Trudeau said the summit will be a chance to discuss a range of issues. 
  
 "That's what the G7 is very much for, an opportunity for friends and allies to come together and have direct conversations on things that we disagree on, but also highlighting things we do agree on and can move forward on," he said. 
  
 Macron and his wife Brigitte Macron are scheduled to arrive on Parliament Hill at 3:55 p.m. ET today, and will be greeted by Trudeau, Senate Speaker George Furey and House Speaker Geoff Regan. 
  
 Macron and Trudeau will hold a one-on-one meeting for 30 minutes, before a broader meeting with Foreign Affairs Minister Chrystia Freeland and International Development Minister Marie-Claude Bibeau. 
  
 The French president will meet with Gov. Gen. Julie Payette at Rideau Hall before sitting down to dinner with Trudeau and his wife, Sophie Grégoire Trudeau, at Harrington Lake. |||||
A: 
When Justin Trudeau asked him what "national security" issue could possibly justify new tariffs on Canadian imports during a May 25 phone call, President Trump had to reach back a long way, sources tell CNN: "Didn't you guys burn down the White House?" Trump said, referring to a famous incident during the War of 1812. But Trump might not have been paying attention in history class: The 1814 attack, in which troops occupied Washington, DC, and set the White House, Capitol, and other buildings alight after President James Madison fled, was carried out by British troops, not Canadians, in retaliation for an American attack on what is now Toronto. Britain's Canadian colonies did not gain independence until 1867, more than 50 years after the White House burned. "Is Britain off the hook?" the Telegraph quipped. It's not clear if Trump "was attempting to inject humor into a discussion on a topic that could have serious economic repercussions," the CBC notes, but the leaders will have a chance to discuss it further when Trump visits Quebec for the G7 summit this weekend. According to Canada's Globe and Mail, Trump's recent anti-Canadian sentiment stems not from the 204-year-old incident, but from "dashed expectations." Trudeau had long largely avoided speaking out against Trump, and the president was apparently surprised when the Canadian leader pushed back against the new tariffs, calling them "insulting and unacceptable." "Trump thought Canada was going to be the easiest country to play, and he’s disappointed that didn't happen," says Canadian trade lawyer Dunniella Kaufman. (In 2014, the British embassy in Washington apologized for celebrating the 200th anniversary of the burning of the White House.)