It should be noted that Canada clutches its pearls, claiming the USA should send “support” to assist Canada is fighting wildfires instead of blaming them for mismanagement. However, reciprocity is a big problem.
Most of the firefighting takes place as an outcome of private-public contracts for costs. The Canadian government blocks U.S. companies from fighting fires in Canada because the Canadian government wants to only pay Canadian companies and workers. U.S. firefighting is not allowed to assist in Canada and get reimbursed.
Conversely, the Canadians quickly want to come to the U.S. to fight fires because the USA reimburses firefighting companies at a higher rate than Canada. The USA has no federal restrictions on Canadian firefighting assistance.
Canadian firefighting professionals would rather fight forest fires in the USA because they make more money. There is no incentive for U.S. firefighting professionals to volunteer their time and effort without getting reimbursed; which is the position of Canada.
In essence, come to Canada and fight our fires for free because we will only pay Canadians. However, also, let our Canadian firefighters come to the USA and make money. It is a very Canadian argument.