OTTAWA -- A group of veterans vowed to keep fighting the federal government Monday after the B.C. Court of Appeal rejected their landmark legal effort to win back lifelong disability pensions for former members of the military. A three-judge Appeal Court panel threw out the five-year-old lawsuit alleging the government discriminated against disabled veterans when it changed the way those injured in the line of service are compensated. Chief among the most controversial changes, implemented in 2006, was replacing lifelong disability pensions with a lump-sum payment, career training and targeted income support -- a regime known as the New Veterans Charter. The six veterans involved in the lawsuit claimed the charter provided veterans with about 40 per cent less over a lifetime than the previous pensions, which they want re-instated or replaced with a true equivalent. The suit -- which argued that Ottawa is honour-bound to uphold a 1917 "social covenant" from then-prime minister Robert Borden that the government would always look after those in uniform -- has no chance of success, the Court of Appeal ruled. "The idea that inspirational statements by a prime minister containing vague assurances could bind the government of Canada to a specific legislative regime in perpetuity does not, in any way, conform with the country's constitutional norms," Justice Harvey Groberman wrote on behalf of the panel. The judgment, which did not look at whether disabled veterans were adequately compensated, also dismissed the claim that the charter rights of vets had been violated. Monday's ruling reverses a 2014 decision by the B.C. Supreme Court allowing the case to proceed to trial -- a decision federal government subsequently appealed. Retired major Mark Campbell, one of the six veterans involved in the case, made his feelings clear Monday during a news conference in Vancouver. "In effect, by saying that there is no sacred obligation, there is no social covenant embedded in the law, what that tells us is that no one has our backs," Campbell said alongside his fellow plaintiffs. "From boot camp down the line, you're told, 'Don't worry. If you're injured on service, the government