How do I get past friction between teams that stalls my work?

You work across teams now, but the political and technical friction between them keeps stalling you, and that grind is exhausting because the obstacle is rarely the work itself. It is the space between people, where old grievances and competing goals quietly gum up everything you try to move. You cannot dissolve the politics, but you do not have to be their prisoner either. Much of the friction lives in assumptions each team makes about the other. When you become the person who talks plainly across the gap, you remove some of the guesswork that feeds the stall, even if you cannot fix the whole relationship. Pick the one blocked handoff that matters most and go talk to a real person on the other team, directly and without blame. Ask what they need and tell them what you need. One clear human conversation often moves what a dozen messages could not. Solve the friction one relationship at a time.