The British may form the world's most orderly line-ups but they tend to lose patience when people don't live up to their commitments.At the conclusion of the NATO summit in Wales two years ago, all countries signed a declaration reaffirming collective defence, after Russia's aggression in Ukraine, and agreeing to increase defence spending to two per cent of gross domestic product within a decade.With another summit due in Warsaw this summer, the Brits indicated this week they are a little bit cross, if not slightly miffed, no visible progress is being made by several countries, including Canada.There was no official comment but sources said London sent the diplomatic message through embassies and high commissions this week. They were at pains to point out that Canada was not the only recipient of the rebuke.But it came in the same week that the Trudeau government was excluded from a U.S.-led meeting of defence ministers from countries spearheading the fight against the Islamic State of Iraq and the Levant. U.S. Defence Secretary Ashley Carter warned allies that there was no room for “free-riders” in the coalition.