U.S.: Follow steps on the U.S. Department of State's website

There isn't a single "easiest" way to get a U.S. visa, as the process can vary depending on your circumstances and the type of visa you are applying for. However, here are some general tips that may help simplify the visa application process:

1. Determine the Right Visa Type: Identify the most appropriate visa category for your purpose of travel, such as a tourist visa (B-1/B-2), student visa (F-1), work visa (H-1B), etc.

2. Gather Required Documents: Collect all necessary documents required for your visa application, such as passport, visa application form, proof of financial means, travel itinerary, letter of invitation (if applicable), and supporting documentation specific to your visa category.

3. Complete the Online Application Form: Fill out the DS-160 form (Nonimmigrant Visa Application) online through the official U.S. Department of State website.

4. Pay the Visa Application Fee: Pay the required visa application fee, which varies depending on the visa type. The fee must be paid before scheduling your visa interview.

5. Schedule a Visa Interview: Schedule an appointment for a visa interview at the nearest U.S. embassy or consulate in your country. Wait times for interview appointments can vary, so it's advisable to schedule your appointment well in advance.

6. Attend the Visa Interview: Attend your scheduled visa interview at the embassy or consulate. Be prepared to answer questions about your travel plans, purpose of visit, ties to your home country, and other relevant information.

7. Provide Supporting Documents: Bring all required documents to the visa interview, including your passport, DS-160 confirmation page, visa fee payment receipt, and any additional supporting documents requested by the consular officer.

8. Follow Instructions and Guidelines: Adhere to all instructions and guidelines provided by the embassy or consulate throughout the visa application process.

9. Wait for Visa Processing: After the visa interview, wait for the processing of your visa application. Processing times can vary depending on the embassy or consulate and the visa category.

10. Receive Visa Decision: Once your visa application is processed, you will receive a decision on your visa application. If approved, your visa will be stamped in your passport.

It's important to note that there is no guarantee of visa approval, and each visa application is evaluated based on individual circumstances and eligibility criteria. Providing accurate information, supporting documentation, and demonstrating strong ties to your home country can improve your chances of a successful visa application. If you're unsure about any aspect of the visa application process, consider consulting with an immigration attorney or advisor for guidance.