Steve Clarke prepares to deliver the most crucial address of his coaching career, words that many prior Scotland managers across 28 tough years would have longed to utter.

What once appeared a distant fantasy, as unlikely as a lottery jackpot, now confronts Scotland directly. Following six straight World Cup absences and occasional resignation, match day arrives in the United States.

One can revisit those eras endlessly, recalling former leaders from Scotland's last World Cup appearance, everyday items now taken for granted that did not exist then, popular tunes of the period, and the simpler media landscape before today's digital shift.

Such reflections highlight the long passage of time, exceeding 10,000 days, and the transformations since. It has been an extended wait. At times the Tartan Army may have doubted such moments would return.

Clarke typically maintains composure, yet he can inspire when needed, as shown in his pre-match words to players before the pivotal Denmark clash at Hampden in November that energized the country.

Preparation is complete, including Haiti analysis, game plans, and adjustments for heat and humidity. Clarke likely need not further motivate these players, as they grasp the stakes fully.

Still, Clarke may touch on deeper themes. The selected starters and substitutes are fortunate. Scottish football history includes many fine and exceptional talents denied World Cup participation.

Looking back, figures like John Greig, Tommy Gemmell, Billy McNeill and Ron Yeats never reached this stage. Bobby Murdoch, Jim Baxter, Bertie Auld and Stevie Chalmers shared that fate. Jimmy Johnstone joined a squad but saw no action.

The list is illustrative rather than complete, capturing legends who missed the chance Clarke's squad now enjoys. More recent examples include James McFadden, Scott Brown, Darren Fletcher, Barry Ferguson, Kenny Miller and Callum McGregor, among others who fell short in varying degrees.

Yet focus remains ahead, where optimism currently prevails. In Charlotte this week Scotland appear composed and concentrated, perhaps calmer than during the troubled Euros campaign two years ago marked by criticism and on-field setbacks.

Clarke notes lessons from those Euros and aims to savor this event. When discussing past disappointments he cites the six matches, three goals including an own goal and deflection, and zero victories across both tournaments where the team struggled to compete.

Captain Andy Robertson addressed this on Friday. If the side stays true to its approach it will compete fully, and even a group-stage exit like prior World Cup teams will come without regrets over caution.

Fortune aided Scotland's route to America, with home wins over Belarus and Greece despite uneven displays. Some elements felt unusual.

The players critiqued those efforts harshly, with midfielder John McGinn labeling one a "jobby," a fitting term.

They then fell to Greece in November. Only an improbable result in Copenhagen, where Belarus held Denmark to 2-2 despite pressure, preserved automatic qualification hopes.

With McFadden in Athens that evening he expressed certainty Scotland would defeat Denmark the next week and advance, firm in his conviction.

Why? Destiny, he answered. It seemed meant to be. And events confirmed it.

Yet the outcome? If Belarus' draw with Denmark surprised, Scotland's win and goal quality proved extraordinary.

An overhead effort from Scott McTominay, a Lewis Ferguson corner aided by Lawrence Shankland, a standout strike from Kieran Tierney and a long-range finish from Kenny McLean created the ideal evening, strengthening the already close player bonds. This group functions like a club side in national colors, supportive teammates who stand together.

Concern arose Thursday over McTominay's stomach issue, but he recovered. The Napoli player with the golden touch appeared to resolve it swiftly.

The game's intrigue lies in Clarke's choices and bench use, with hints he may hold key players back. He has noted repeatedly that the finishing lineup could prove as vital as the starting one.

For this match he will likely retain his forward pairing of Shankland and Che Adams, meaning a top midfielder may begin on the bench.

Scotland draws confidence from eight goals in the prior two friendlies. Curacao played with ten men at Hampden and faded in a 4-1 loss, while Bolivia offered limited opposition.

Still, confidence matters regardless of source. Clarke has highlighted Haiti's strengths in size, power and athleticism.

Haiti defeated New Zealand 4-0 in warm-ups before New Zealand fell 1-0 to England, establishing a competitive line. Ranked 83rd by FIFA, Haiti earns Clarke's respect for those attributes, including mental resilience from representing a nation facing crisis and hardship.

Port-au-Prince remains under armed gang control, with widespread instability, hunger, violence and collapsed services. Many schools closed, 10 percent of the population displaced, and the team plays no home matches. Coach Sebastien Migne has yet to enter the country two years into his tenure.

Such adversity can foster resolve. Clarke recognizes this, as do his players.

Scotland holds a 4-23 record in World Cup matches, a reminder amid past disappointments like the 1990 loss to Costa Rica.

Clarke treats the fixture seriously. It is essential given upcoming games against Morocco and Brazil. No one in camp avoids that reality. They aim to become the first Scotland side to advance from the group.

A large traveling support joins them alongside millions at home, blending hope and nerves, conviction and concern. All emotions appear on this major stage.

Exciting yet daunting. An unforgettable moment.